#Demon Prince Perturabo

[kit-williams]

No Longer You

The next part in the Legion Mother Lost in the Warp Series. One of his prophetic sons comes to the Iron Lord with worrying news while the Iron Mother receives worrying news as well.

Male Lead: Perturabo Female Lead: Penelope Song on repeat: Epic the Musical - No Longer You Cw: Song fic, pov switching

@bispecsual @egrets-not-regrets @moodymisty @bleedingichorhearts @liar-anubiass-blog

@thevoidscreams @barn-anon @gallifreyianrosearkytiorsusan @squishyowl @ms--lobotomy

@nekotaetae @sleepyfan-blog

Perturabo went over her words again and again and again in his mind... his mind churning so much that his body destabilizes and he felt anger flare up at how worked up he was getting over a possible warp ghost or worse yet a trick. He buried that part of himself... buried all these emotions tied to her when he burned Olympia... when he killed Calliphone... when he needed her tender heart to hold back his wrath... a wrath that ultimately was tainted by his grief. His breaking down after Olympia was just as much of him mourning her death in equal measure to his regret bubbling up. Would she have agreed? Perturabo wonders as maybe she could have stayed his hand upon his sister... upon Olympia... he knows for a fact that he wouldn't have followed Horus as long as he did... Nelly wouldn't have let him.

Ajax was one of the few things he could hold over his brothers of something he had and they did not... hindsight either paints his thoughts or gives him insight into how certain brothers of his had grown far too interested in Penelope once she was carrying Ajax... and many of them had turned traitor. Perturabo pauses in his tinkering as he lets ancient thoughts return to the surface as he wonders.... what she would have said to get him to stop following Horus, if he ever started to follow him in the first place. He blames himself for her death, he called her to Olympia when he caught wind that the corpse that was once his Father and the frail Malcador had expressed interest in meeting Ajax... catching wind in wanting to summon her to Terra without him. Once more Perturabo lets his thoughts wander... what would have happened... anxiety flairs inside his gut at the brief thought of sieging the imperial palace and not knowing where she was... or even if Father would keep her alive for that long.

He exhales, his nostrils flaring like a grox-bull's, as he focuses on melding the metal in his hands; Ferrus was always better at making the metal into surprisingly delicate shapes... when he wanted to. Perturabo looks at the metal in his clawed hands as it is another shell... to replace the one that had fallen into disrepair from his neglect over the millennia. A rare smile flutters across the lord of Iron's face as he looks at the iridescent metal shell. His eyes flick over to a screen as there was a rare thing... someone that was not one of his warsmiths was requesting an audience... His tongue moves over the fangs in his mouth, reminding him of his brothers Leman and Konrad with their fanged maws, as he thinks and looks at who dares seek an audience with him. One of his Sorcerer sons... Tiresias Korpanos... the Korpanos were a rare set of psyker twins that had survived the trials of the Iron Warriors, Perturabo remembers telling Magnus of his sons and how excited the Sorcerer king had gotten. Psyker twins were always more powerful together but he remembers that the twins willingly separated as his brother... Morpheus went with Penelope.

Though Tiresias had grown wildly eccentric in the millennia that had followed their damnation. His nose wrinkled at the thought of dealing with this gibbering sorcerer or at worst would be speaking in vague poetics. He was feeling nostalgic today as he could remember Nelly listening to the prophets poetics with baited breath and always trying to decipher what they mean or the look in her eyes when she realized some portion of the vision had come true. He could stomach Morpheus' presence and she liked Tiresias but alas their loyalties were not to be... it must have been nostalgia guiding him as he accepted the request.

Penelope looked away from the curly haired Ajax in her lap shoving a bright yellow toy into his mouth as Antioch had told her of his reservations to allow Morpheus Korpanos to see her. He insisted his reservations were only as Morpheus was uncertain of the message he was delivering and as Antioch passed along it was 'vague and ominous'.

"Well, I am not Perturabo who only demands certainty." Penelope said before kissing the young Iron heir as she handed him to one of her handmaidens.

"His message sounds like it comes from a hermit oracle." Captain Antioch said.

"Pity then as I enjoy the old stories," Penelope smiled as she sat in her seat with learned authority, "I will see my son Antioch."

"Yes Legion Mother."

Tiresias twitched at unseen shadows in unreality as they were simply the immaterial tendrils of his genesire drawing far too close for comfort. The Lord of Iron looked at him with a loathsome look in his glowing eyes that flicked between a fiery orange to the icy blue that his eyes were in life. Perturabo was as deadly as any warp predator and perhaps even more so. His genesire simply gestured and so Tiresias began, "I am the prophet with the answers you seek," Perturabo frowns at that, "I see past and future running free... there is a world where I help her get home... but that's not a world I know."

"What?" Perturabo's voice was harsh as he did not like the oracle like delivery but Tiresias was tied to the warp and he remembers how Magnus explained that sometimes delivery would sometimes be roundabout.

"I see a song of past romance," Tiresias said louder and more confidently, "I see the sacrifice of man!" His voice swelled, "I see portrayals of betrayals," There was pain in his voice, "And a brother's final stand..."

"I see you on the brink of death," Morpheus says somberly, "I see you draw your final breath," he says as if in pain from what he sees or feels, "I see a man who gets to make it home alive," His conviction returns, "But it's no longer him."

Penelope sits there surrounded by her iron honor guard as there is concern on her face as she looks at Morpheus. She could see why Antioch was so displeased with Morpheus' revelations. Antioch clenched his jaw at the revelations made as it was his and his brother's duty to guard the Iron Mother, even more so now given what Lord Guilliman had told him about the Lord of Iron.

"I see your palace covered in red... Faces of men who long believed you dead..."

Tiresias voice was quiet and fearful for the next part of his vision would surely displease his genesire, "I see your wife with a man who is haunting," The room became painfully silent as he could see the immaterium condense into a point, it was as if Perturabo had pulled his entire demonic being back into this room and focused his entire being onto Tiresias, "A man with a trail of bodies..."

"Ẃ̸̠̞̆͑H̷̳̩̻͚̀͒͋O̷͇̾͂?"

Perturabo bellowed as the Lord of Iron was done with this game. His claws reached out into the aether and grabbed a part of his soul.

The twins screamed out in utter agony as they could feel their souls being pulled back from their form... they were being ripped open slowly. Antioch and the rest of the maternal guard sprang into action as he gathered Penelope into his arms and rushing her out of the room and away from the potentially unstable psyker; Tiresias could feel his twin and still chose to bear the brunt of what their genesire was doing. The warp began to bend like metal and crack like glass and yet as the Primarch pushed and from what his brain could interpret... it liquified around Perturabo. They could feel the burning of claws sinking into their souls and the burning pressure of his gaze on their souls and the writhed in agony. But, Perturabo finally got to what he was looking for and was assaulted with images that Tiresias had seen but was unable to directly say.

~A song of past romance...~ Violet eyes looked into his own icy blue eyes... Fulgrim in all of his depraved glory grinning at him as in two of his arms he cradled a broken body like a perversion of a lover as he drank the soul right out of the defiled thing... perverse pleasure and so much pain came from the writhing mutilated thing in his arms... Perturabo felt something sick gather in his chest as it looked like Curze had gotten a hold of it... gotten a hold of her as it she reached out to him with a broken, bloody, mutilated hand... all the while Fulgrim was slowly drinking her soul away leaving poisoned and acid filled kisses on ruined skin... that gloating look in those violet eyes as he ripped his eyes away to meet the thing's gaze in his brothers arms... it was Penelope.

The vision mercifully shifted... ~ the sacrifice of man... ~ Roboute stood in front of Penelope as she was holding Ajax in her arms, his brother looked so tired yet there was a hopefulness in his eyes. He could tell years dragged by in this vision and he watched how over this vision of twenty years how the Lady of Iron's heraldry was replaced... the yellows, blacks, and iron colors were slowly replaced piece by piece with gold, white, and blue... the Iron Warrior heraldry replaced with the omega. The sad look in her eyes as Perturabo glanced seeing Ajax shift from an infant to a man... her hair with streaks of grey as Roboute returned to the forefront and he watched his brother drag touches against her skin. Gestures becoming far too intimate as he cupped the side of her face and once more the warp around him became sharp and angry as he watched Robute trail kisses from her ear to her-

Perturabo felt rage. Perhaps a fraction of what he was told of the rage that Sanguinius carried. How dare Roboute touch his wife... his Penelope... his Nelly! How dare he raise his son! As his form churned the vision blurred... ~ portrayals of betrayals... ~ His anger became frozen as once more his gaze met the dull eyed gaze of the corpse of his wife. Her outfit stained red as she laid in a pool of blood. Perturabo looked up seeing Magnus looking down at Ajax in his arms as the cyclops' gaze returned to the body and there was a look of pity and sadness for a moment before he vanished in a whirl of magic.

Before he could finish processing it his icy blue eyes met forest green eyes... Lion's eyes... ~ and a brother's final stand. ~ He glowered at Perturabo as his sword was held to the side, blood dripping from the blade... and by the blade tip curled protectively around a bloody body... Distress crawled over the Primarch as not only in this vision his wife was dead but also his son... Despair and anger fills him as he watches a phantom version of himself charge the "eldest" Primarch...

"Morpheus!" Penelope cried out.

Perturabo exhaled once more hearing her voice, his eyes darting to the tether that linked the twin souls and as much as he could use it to appear to her to be there once again... Perturabo removed his claws from their souls. The Lord of Iron needed time to prepare... time to prepare a place for her... to prepare to bring his wife home. The twins collapsed as blood wept from their eyes and noses. Tiresias took the brunt on his soul gaining new mutations as his left hand was clawed and he could feel a mouth press against the body glove under his right arm. Morpheus was relatively unscathed minus his teeth all being sharp and the new eye on his right cheek... but those could be taken care of.

Captain Antioch walked over to the entrance of the Librarium as Brother Chaplain Achilles walked out, a sigh leaving the vox on the skull helm. "He continues to say disturbing things Brother Captain," He paused for a moment looking at the hard gaze that Antioch was giving him, "things about the Legion Mother's survival... things about Father. Antioch how much stock do you put into his vision?"

Antioch looked at the grim specter that was Chaplain Achilles, "Father is a monster now. As far as I am concerned we are all that is left of the legion."

Achilles hummed, "Lady Penelope is adamant that she spoke with Father. To a pitying degree..."

They were silent for a moment, "There are creatures that can mimic voices," He says knowing what to tell the Iron Mother in her inevitable desperate plea, "we must get her to safety."

"Agreed. She and Ajax must survive lest the morale of our brothers crumble." Achilles tone is firm as a decision has been made.

Castor watched the protective shielding peel back with a thunk as layer upon layer revealed more and more of the starlit void as they left the warp. Olympia floated in the distance... still a dead world thanks to the Primarch of the Dark Angels. But, he was not here to be sentimental about home no he was here for something else. Screens and images flickered to life as in the green light the Gloriana was brought into view. The Iron Amarantos draped in the heraldry of the Iron Warriors and in the unique heraldry to denote that it was the Iron Mother. For the veterans it was as if they were looking into a time capsule, for the Amarantos was a flower compared to the brutal ships they were use to... it was a piece of art.

Castor grinned at ship on his display as he felt as giddy as a Scout again. The memories of the Legion Mother were still clear in his mind as her warm smile was a balm... she was the heart and the hearth of the legion and he felt joy that she was still alive! The ship shifted to high alert as the Amarantos' defenses kicked in as their machine spirits were probing and starting their attacks to cripple them... already locking on to their position but they had the proper codes to feed to the ornery spirit and assuage its demands.

Father had demanded that confrontation was off the table... and rightfully so given there was around five thousand Iron Warriors aboard the vessel and countless security measures all handmade by Father to protect Mother. Castor had to approach this situation delicately but he could not deny the desire to see Mother dearly... to feel her warmth again... the feeling of her hand on his head... and the softness of her voice. He missed the warmth of the iron hearth and would not fail Father.

[mustbealoosewire]

by Trollfeetwalker.

[kit-williams]

I'm using moody's chart to help with this (Thank you @bispecsual and @mothiir for ideas for the final few men)

Mortarion You had intended to call Mortarion Daddy but you had been stunned into silence by the sudden moan from him as he cried out, "Take it Mommy!" As his hands pull you close as he thrusts in deep. Your face flushed as he looks at you with such an intense lustful look... You clench down as he leans in growling, "Be a good Mommy for me..."

Demon Prince!Fulgrim "Such a pretty little Mommy." He says as two of his hands rub over your rounded belly. You whimper not knowing where you are as you lean towards the warm voice. His tail coiling around you, "I might just have to keep you like this... so perfect. My perfect little Mommy."

Lorgar You ride Lorgar hard as you ask him... whose a good boy? "Me Mommy me." He moans back holding your hips helping you ride him as you tell him what a good boy he is...

Horus His mouth was wrapped around a nipple as you could feel the heat from his mouth just helping with the let down. You moaned softly with relief as not quite milk dribbled into his mouth as he worked your nipple with his tongue not wanting to suck too hard. You pet the back of his head closing your eyes, "Such yummy milk Mommy makes." He croons to your swollen stomach...

Perturabo You could hardly understand Perturabos' rambling at this point, he always got like this during sex as he pulled your hips back to his just fucking you like you were some sort of toy. He groans behind you kissing your shoulder, "I don't know if you're prettier now dripping my cum or when you'll become a Mommy." He says as you struggle to stay awake as he now lavishes you with kisses.

Sanguinius Blood was smeared across his face, your blood, he was always so helpful during your heavy periods when he was here. Red wings paint the sides of his mouth as he looks at you with a blissed out look, "Mommy's blood tastes so sweet." He growls before climbing on top...

Yan!Konrad "You'll be such a good Mommy." He says buried deep inside of you, his cock hardly leaving your cunt as his hand rubs your growing stomach. You whimpering and pushing you hips back to his as he continues to praise you.

Yan!Corvus "Mommy likes riding my cock doesn't she?" He croons to you licking your skin as your arms are tied together. He bites away the gag before his tongue occupies your mouth, his chest rumbles as he whispers in your ear, "Mommy is going to make cute little Ravens for me."

Roboute It had slipped out from him during a late night but the way you smelt instantly betrayed your thoughts as it quickly led to you being fucked on his desk, "Please Tell me I'm doing so good Mommy." He moaned in your ear as he listened to you tell him how good he was doing with this nightmare of an empire....

Vulkan You had called him Daddy as an accident. You cover your face with your hands as that brought sex to a pause as he just smiles over you, "I mean I guess I can let you call me Daddy," He says as you peek out from between your fingers utterly embarrassed before his voice drops to a sinful octave, "but only if you let me call you Mommy."

@bispecsual @egrets-not-regrets @moodymisty @bleedingichorhearts @liar-anubiass-blog

@thevoidscreams @barn-anon @gallifreyianrosearkytiorsusan @squishyowl @ms--lobotomy

@nekotaetae @sleepyfan-blog

Perturabo is the type of guy to want to be called daddy in bed 😭😭

And i would gladly fulfill that desire of his, because if we consult the chart

I would call that man daddy with absolutely no shame or qualms about it. i would do it with a gusto that would concern him

[warsofasoiaf]

So in the Siege of Terra they kind of dropped the fates of the other traitor primarchs. We last saw Peturabo & Lorgar waiting in the wings for Horus' victory. The 4 associated with specific gods we saw turned into demons, Dorn killed Alpharius in the lead-up, & Big E did Horus. I read Kurze's death in ADB's Night Lord books & he does not seem to have been a demon (or even really a primarch given how easy he went down). What happened to Omegon, Lorgar & Peturabo? Did they die, go demon or other?

Lorgar attempted to challenge Horus for command of the Traitor Forces, arguing that he was too weak. Horus exiled him and he fled into the Eye of Terror. After unspecified acts of atrocity, Lorgar ascended as a Daemon Prince of Chaos Undivided.

Perturabo was disgusted at Horus turning the war over to "sorcerers and beasts" instead of a "Legion war." He ordered the Iron Warriors to leave. He would sacrifice Imperial Fist gene-seed to Chaos to ascend as a Daemon Primarch of Chaos Undivided.

Curze was a Primarch, and it appears that he was so tormented by his visions that he willingly allowed himself to be killed by M'Shen because it vindicated everything he ever believed.

Omegon's status is unknown.

Thanks for the question, Anon.

SomethingLikeALawyer, Hand of the King

[mr-downer-2024]

There is a genuinely great moment in the otherwise "wrap this shit up asap cause GW is rapidly shifting tone" Siege of Terra books where Perturabo realizes that the loyalists "won" the Horus Heresy, in that they wanted to overthrow the emperor to make a galaxy for the astartes and their brotherhood and honor, and that what is going on now is the warp/chaos stuff he is disgusted by so they basically quit the field, tell all the weird chaos marines good luck but we're bailing.

Its a genuinely good ...humanizing(?) moment where Perturabo may be 4chan Incel incarnate, but he still has lines he won't cross and realizes they were all played like fiddles.

the fuck they made him a demon prince for the iron cage thing lowkey disapoints me. Would be nice if Perturabo was the one living traitor Primarch who wasn’t fully corrupted by chaos.

[war-of-wrath]

Warhammer 40k/30k fic recs of the smutty kind

So, I've been taking a deep dive into the warhammer universe lately (shoutout to @tagedeszorns, who I blame for seducing me with all that glorious marine meat)

Would love for people to add to this list with their own recs. I do tend to like the dark stuff, so read the warnings on those fics and don't charge me for the brain bleach you might need after reading them. Here's a few of my favorite stories so far. Porn for the porn god!

Held In The Grip Of Incurable Vice

Snake Fulgrim/Ferrus (well, parts of him) The fic that started it all. Exactly the perfect blend of smutty and horrifying. For the uninitiated: Demon prince Fulgrim (think half-snake half-humanoid) fucks the skull of his brother/lover whom he killed in battle. To quote one of the reviewers "This is absolutely disgusting and I love it"

~

Doom Desire

Snake Fulgrim/Ferrus' clone More Fulgrim/Ferrus of the terrible, horrible, painful variety, because I could read fics about them being happy together before this whole mess started, but you know me. The best thing about this is how it starts so sweet and ends in terrible, horrible rape and death. Demon prince Fulgrim attempt to seduce the clone of his dead lover to the dark side. Needless to say, things do not go well.

~

to burn through this solid stone

Septimus/Talos

Probably my favorite WH fanfic to date, and probably also the single best Astartes/Human smut out there. This one is surprisingly not-so-dark for a Night Lord story. Ridiculously hot. That sweet, sweet size kink. All Septimus/Talos stories on Ao3 (all 4 of them) are worth reading imo.

~

Count Down Three Rounds

Fulgrim/Perturabo

Boy I did not go into this fandom expecting to like Perturabo as much as I do, but here we go. This is probably one of the least violent and terrible stories on this list, if you don't consider the heartbreak and the hurt on an emotional level. Since I firmly believe that NOTHING could ever make Perturabo truly happy and content, the best I can see happening to him is that he at least gets laid.

If you like the ship I also recommend

Silk and Steel

And

Know your place

With some extra Fulgrim pinning for long dead Ferrus that I can't help but love.

~

And to absolutely nobody's surprise Sevatar is my favorite Warhammer blorbo. I know I'm predictable but who cares. I ship the Prince of Crows with absolutely anything that moves. Curze or Rushal are probably the ships that make the most sense, but I have also read stories with Dorn or Sigismund or even Fulgrim and they were just as enjoyable.

This one is probably my favorite, and let me just say: Fanfic writers are seriously talented if they make me love stories that include my squicks XD

Brave Bird

Sevatar/Rushal

~ Most of my acquired knowledge centers around the Horus Heresy and the Primarchs (because that's where I started reading) and I especially love reading about anything Night Lord related, so hit me with those recs (also my other favorite legions are the Iron Hands, Iron Warriors and Emperor's Children).

[weliveinhell]

I've read both AE and Hammer of Olympia, and I agree with a lot of all of this.

I think a lot about 40k Perturabo, about how he must hate how he's a demon prince after the Iron Cage and therefore inexplicably indebted to chaos now. I can only imagine that a significant amount of his attention is focused on undoing what Fulgrim did to him all those millennia ago and regaining his humanity.

To go through so much hell and still be essentially unbroken I think speaks to that goal in the back of his mind. His interactions with Honsu in particular make me think that. Idk why but I always picture him saying, "I'd do anything to get back what was taken from me."

And with TTS being as good as it is, the idea of The Emperor being able to get Perty's soul back, freely, as a gift given out of an act love....I think it would legitimately completely change Perturabo.

Perturabo Hammer of Olympia - Wrap-Up

i wish we'd gotten more scenes with calliphone like don't get me wrong her scenes were incredible but i think there should have been more setup with them

re: Dammekos and Perturabo's relationship, it deliberately leaves some things ambiguous so really you can draw your own conclusions, my conclusions are fairly clear from what I said but I'll expand on it later when my arm is fresher.

(in response to: primarchs all suck at warfare) it seems like Perturabo actually got worse at war as time went on, somehow oh it's- Haley's done it again, if you compare Perturabo fighting in the inter-city wars to his actions against the Hrud, it's the same type of tactics just shifted to their worst and most horrifying extent i say "haley's done it again" because this was kinda a theme in Dark Imperium as well and a bit in Pharos about the Imperium, and the Great Crusade especially basically doing this to people though also this is my pet meta so I may be reading too much into things it's a bit different here which is why I feel like I might be reaching and saying it's an overarching Haley thing

oh yes another thought which is that perturabo gets less and less rational through the book like take the beginning when he's able to debate with the priest, and it's an actual debate, not just him overwhelming the priest with charisma and then, well gestures at all the present day scenes my first thought was, he gets stupider lol but i think it's tied to the whole idea of the Great Crusade basically making things worse like i said re: Mortarion (did I say this on tumblr?), the Great Crusade basically magnified all the faults of the primarchs

on the topic of Perturabo's friends: you know, multiple people talk about him and magnus being besties but it seems like it was mostly onesided perturabo shills thinks about magnus in angel exterminatus and i think one other book i saw excerpts of meanwhile magnus is like "i don't think of you at all" even Horus doesn't seem to like Perturabo (in his POV segments where he thinks about Perturabo it's always with aggravation) and Horus likes everyone!

the best relationships he had were with Forrix and Calliphone with Forrix it really kind of reads like an abusive parent-child relationship and Calliphone they got along okay-ish before he left and then he never called or wrote for more than 100 years and then. well.

he does seem to want to be closer to Fulgrim in Angel Exterminatus but with Perturabo that's basically "doesn't reach out at all, just does whatever is asked and replies curtly" etc etc except for the one scene where Fulgrim got shot i'll bring out this screenshot as well

also. well. we all know how that turned out.

Perturabo: I don’t need Chaos to make bad decisions and damn my legion! Im also still thinking about the juxtaposition of perturabos brute force cf his tactics, the way he fights one vs one and the multiple hand descriptions With stuff like the delicate handwriting, the birds, I’m going to include the clockwork titan here

also I just want to say I hear a lot about the Dorn rivalry but it was touched on only a little in AE, and didn't even come up here

it showed up in the Phall novella but really that one was about Dorn's dysfunction and a lot of that one was just Perturabo going "this is definitely Sigismund we're up against" and then getting bodied when it wasn't okay okay it was a lot closer a battle than i'm making it sound lol

also ONE MORE THING because I didn't screenshot it but we got what was probably the closest thing to confirmation that canon will ever give us that primarchs (or Perturabo specifically) are ace yes there's a whole lot of ways you could read that bit (it's just Perturabo. It's just Perturabo being Perturabo bluejay stop reading so much into it. Perturabo is just not interested in women) but I dunno, I feel like it makes the most sense

wait ONE MORE THING the reason I got invested in Perturabo is he got some great character writing in AE and this has continued here where it's even better it would have been so easy to write him as one note manchild with the depth of a sheet of black construction paper but he was written in a genuinely. compelling way

i want to say something like "this is probably why he has so many fans" except it seems like 2/3 of his fans haven't actually read any books with him that being said I have seen people who read his primarch book and came out completely disgusted with him which, honestly, is a very fair judgement to make! it doesn't try to sell you on him by building up how cool he is or anything or try to make you sad for him by showing us his sad backstory it's just digging into what makes this guy tick, and a great negative character arc i said somewhere else this is basically Angel Exterminatus if it stuck the ending and didn't fall down 13 flights of stairs but anyways, really, this is why I have so much to say about Perturabo because the way he's written gives you so much to say about him

also thinking about how Perturabo went from caring about regular people and trying to build stuff for them to slowly becoming more and more indifferent, to the final nadir of Olympia I think that is a path that might have been avoided, at least partially me earlier: pert is completely unfixable me right now: wait this bit might be fixable, which could lead to positive growth sorry this is all over the place

[fuukonomiko]

If you are still doing the sexy clothes meme, could you do Kairos Fateweaver in 1A?

SLUTTY SEXY CLOTHES MEMES

The demon prince of Tzeentch is screaming in fury! “WHY CAN’T YOU HUMANS FIND A BETTER ARTIST TO EXECUTE MY GRANDIOSE????” And here I thought its mad because the outfit made its hinder look big. 

More Sinful Images....

Fulgrim

Lost Primarch Az’khal Tru’gall

Perturabo (OMG Please check him out I am so proud of this)

Lorgar and Nemeroth

Fulgrim Again

Lucius the Eternal

Inquisitor Godiva Iboni

Ferrus Manus

Corvus Corax

High Prince Raphael Carrion

Vince the Prince

Delphine from Power Rangers

Alarielle the Everqueen

Sgt. Tobias Lorik

Primarch Roboute Guilliman

Varney of London (from Castlevania!)

Primarch Vulkan

Szarekh and Imotekh

Canoness Elizabeth

Catachan Vin Stav

Konrad Curze

Rogal Dorn

Valkia the Bloody

Anastasia Mr’ez

Magnus the Red

COMING NEXT IN ANOTHER CENTURY MAYBE:

OC Briar

OC Jacques

Celest St. Clair

[your-raifu-is-shit]

Roast the primarchs

Alright, let’s do this -

Lion El’Johnson: Edgy loner, the epitome of That Guy we all knew in high school who insisted he just couldn’t get along with other people because he was “too different and special” but really was just an unlikable dick with a superiority complex.

REDACTED: Stupid fuck who REDACTED despite REDACTED, what a REDACTED mook.

Fulgrim: Narcissistic twat who could have avoided falling to Chaos if he spent 1/4th as much time engaged in critical thinking as he did on his hair.

Perturabo: Whiny bitch who never understood that other people have feelings too and aren’t just machines.

Jaghatai Khan: That douche who revs his goddamn Harley at 3am, just fuck off we’re trying to sleep you cunt. Also does not play well with others and expects his subordinates to make up for it.

Leman Russ: Broseidon, Lord of the Broceans and Primarch of the Frat Boys. Literally gave himself his own nickname of “The Emperor’s Executioner” despite Lion being the one with access all the fun doomsday toys. Also just a little bit too eager to commit genocide, even by Space Marine standards.

Rogal Dorn: Blandy McBlandface

Konrad Curze:  Edgelord Supreme, all his furniture is probably that red-and-black Gamer™-style crap from the early 2000s.

Sanguinius: .... I got nothing, Glorious Hawk Boy is perfect and unroastable.

Ferrus Manus: So horrendously bad at teaching his sons that they literally took the exact opposite position of his stance on flesh vs machinery.

REDACTED: Even more of a REDACTED than REDACTED up above. Would have been cool despite that if not for REDACTED.

Angron: Dude, seriously, chill the fuck out.

Roboute Guilliman: DIRTY XENOS FUCKER

Mortarion: Smells like day 3 of an anime convention

Magnus the Red: Too headstrong to listen to other people, too much of a pussy to help his sons when they catch the heat for his fuckup.

Horus Lupercal: “WAAAAH, I’m so strong and smart and successful that now everyone expects things of me! WOE IS ME!” shut the fuck up you pissbaby, learn how to manage expectations.

Lorgar Aurelian: Shut-in NEET that spent literal millennia faffing about in his basement despite getting a bitchin’ upgrade to Demon Prince.

Vulkan: Actually a pretty cool guy, unless you’re an Eldar in which case it’s “If you didn’t want to be burned to death then why are you flammable?”

Corvus Corax: CRAAAAWLING IIIIIN MY SKIIIIIN

Alpharius: Fancies himself a master of 5-D hyper chess but gets played like a fiddle by the first people to give him a task more complex than “kill these backwoods rubes.”

Omegon: Still unironically shares “We are Anonymous, We Are Legion” memes from old /b/. Probably owns at least one fedora trilby and will get really mad if you get it wrong.

[djemsostylist]

Djem's Legion Thoughts

About three years ago my brother joking suggested I read the Horus Heresy, knowing literally nothing about Warhammer. (Literally nothing. I just thought Space Marines were big dudes in armor and I had never heard of Primarchs and I still know nothing of 40k. Have no idea how the Heresy ends--I'm spoiler free babes.) Anyway, what follows are my feelings on each Legion at the following times:

As of midway through Fulgrim

At the end of First Heretic

At the start of the Master of Mankind

Halfway through the Siege

This is very long. I'm not sorry.

Dark Angels

idk I haven’t met them yet, but their name tells me they are either going to be amazing or fucking awful

Um I still dk

God I fucking love these stupid idiots. Like, they are stupid, for sure, but I dunno, I dig their bizarre sort of pseudosecrecy thing. Plus, aesthetically I’m all about weird monk orders. Also, nothing kills me quite like Farith Redloss having anxiety attacks over trying to figure out Lion.

Corswain showing up like the living embodiment of the dude with the pizza where the apartment is on fire is just so deeply on brand for these chucklefucks like, Lion is all “I’m deeply uncomfortable where Imperial Secundus is concerned so instead I’ll just go ahead and attack home planets because that will demoralize the traitors and then I’m Doing My Part” like fam, pretty much all the traitors sans Perturabo are actual literal demons rn and they all had zero qualms betraying their immediate brothers and also the emperor (and Perturabo already fucked over his own) why in the livid fuck would you think this is in any way helpful, but this is Classic Lion and I love him now on account of that one time when he hugged Roboute because he was proud of him and also because he calls all of his sons “Little Brother” bc he is afraid of being a dad and also because I too am deeply avoidant of issues I don’t want to deal with.

Emperor's Children

mostly wonderful, because they are fabulous and also extremely extra, but they have the most ginourmous fuckwad as a Lord Commander, BUT they have a very good boy as another one, so idk really. Plus the whole betrayal thing and the fucking lodges, but they are purple and fabulous, so, +1?

These are the saddest boys ever in the whole world, and they didn’t deserve what happened to them. I loved them all except for Eidolon and they didn’t deserve anything bad to happen to them ever bc they were precious and I loved them. Also Fabius because he was bugnuts and he hurt my boys.

Jesus, I’m so fucking over them all

Honestly I’m so tired

Iron Warriors

I totally confused them with the Iron Hands. Idk even, boring? But Perturabo (while he has a fucking terrible name) also hates Horus so +15

I still know nothing about them, but I think they are buttholes because of the whole Isstvan V thing. Dick move guys, dick move.

I literally can’t. Like, their entire shtick is besieging and being besieged, and then being pissy bc it is what they are good at???? Like, they are literally traitoring bc their dad got a hair up his ass bc he wasn’t a good independent thinker and didn’t think he was allowed to build castles or whatever? Idk they are exhausting except for the ones that aren’t

I still don’t really get them at all except like 99% of them who aren’t named Barabas Dantioch are asshats and are not independent thinkers who are literally still traitoring for reasons unknown except to stick it to the emperor like?? Get an actual culture??? Just literally stop???

White Scars

I dunno, haven’t met them, but since no one else talks about them, I’m gonna guess, boring?

I dunno but they are worried about them hooking up with the Rout so I guess they are cool?

Oh bless your tiny little souls. They are so sweet, and so, so dumb. But sweet.

They are very, very good boys. They don’t have a ton of range per say but their simplicity is sort of the point I think. They are what space marines are supposed to be, and I love them for that

Space Wolves

ehm, oh, I’m sorry, The Rout. Whateverthefuck, they’re boring, over-the-top fuckheads who are giant fucking hypocrites who suck and probably don’t ever shower. Honestly, they rival the Emperor’s Children in extraness, and not in the loveable way. Fucking awful, 0/10.

Okay, honestly, not as awful as some. I mean, hella extra and I hate what they did at Prospero, but in a world full of awful things, we gotta pick and choose.

They are just so, so...Space Wolfy. Bless them they try, and some of them legit crack me up. I’m just not about their aesthetic, you know?

Much like the other fuckups amongst the Loyalists, they are a blunt instrument used for a specific purpose and do better with like...direct instruction. I’m saying they are not the kind to do well with metaphor and also a lack of like, a dad. They need TE:BBA is what I’m saying.

Imperial Fists

Literally only met them briefly, but they seem a good sort. I like their Primarch? -3 tho cause damn that color scheme.

Still good boys.

Omg I love you all, you precious little bbs. They are just so calm and stoic and honestly even though yellow is a hideous color they are literally like Templars and that is fantastic?????

Listen, the amount of love that I have in my heart for these precious, perfect boys is rivaled only by my love for Rogal Dorn, who might possibly be, and I don’t wanna sound dramatic here, be the love of my life but anyway.

Night Lords

idk but their name sounds sick.

Right, these guys are also dicks. I hate them on principle.

Every time I think of them all I can think of is that one video of the goths dancing under the bridge. They are so. Fucking. Extra. Christ alive, get a hobby that isn’t fucking skinning people.

Yeah idk they still mostly suck and to be perfectly honest I’m still not entirely sure what their point was, even pre-heresy? Like what role did psychopaths play in TE:BBA’s plan for a glorious human empire, someone explain

Blood Angels

I dunno cause I’ve only ever met their First Captain (who was consorting with fuckheads) but Sanguinius is literally Top Tier Fabulous, like Prince Extra, so I hope they don’t let me down

I’m still holding out hope. Don’t let me down boys.

OH. MY. GOD. Honestly, kill me, I love them so, so, so, so, so much, it’s a lot. And I suspect something terrible will happen with them but I don’t care because they are perfect. All of them. Wonderful, perfect, lovely, caring boys who love their dad and I love them. Sweet, loving, precious little bbs who occasionally suffer from tragic vampiric tendencies but I don’t love them any less. They better stay perfect forever. If I could, I would be like Sangy and just take them all everywhere with me so that they could always be safe <3 On a less gushy note, I think one of the most important aspects of the Blood Angels (and of their primarch) is that while they acknowledge their differences from unmodified humans, they also love humanity, deeply. They see them as worth fighting for and protecting, and acknowledge that their abilities allow them to create a universe that is safe for the common man to live in. There is a sort of profound love and tenderness that they have for humanity, and I think it really does make a difference in their legion. (That scene is Master of Mankind with the Blood Angel and the Custodian really highlights what I’m saying here.)

Listen, this may sound dramatic, and I don’t wanna like, go over the top, but I would literally die for them, which would seem counterproductive since that is what they do for humanity but the amount of love of I have for this entire legion and one Angel is too big to contain in my heart okay

Iron Hands

I don’t know them well yet, but they seem like good boys overall. I’m sure one of them is bound to be a crazy fucker tho.

They are good boys. I don’t know them very well, but my favorite moment is when Ferrus had to thank Lorgar for his help so he made him a crozius and then threw it at him because he didn’t want to have to talk awkwardly.

Poor sad bbs

No, but really, poor sad bbs

World Eaters

literally terrible people, but I guess when your Dad is bugnuts….

Definitely should have been put down. As in to death. They should have been killed. Probably.

Still fucking crazy. But I love Kharn, and honestly Lotara (who I know isn’t technically a World Eater but close enough.)

No but they probably should have all been just euthanized? I mean not Kharn bc I love him but also like--they are not viable. Long term? Tbh still not entirely sure what TE:BBA’s plan was here with them and Angron (I’m gonna assume something along the lines of ignore it and hope it goes away, since that is mostly his plan for everything)

Ultramarines

probably enormous squares, but tbh in a galaxy with World Eaters and the Rout, we could do with some squares.

Honestly, I have no issues with them. They do their duty, they are loyal. I hope to love them though. They actually believe in colors.

HOLY FUCK DO I LOVE THEM. ALL 200,000 OF THEM. (Which is probably what Roboute thinks tbh.) Like, I literally haven’t met a single one that I don’t adore and love with my whole soul and entire being. They are precious, soft, beautiful bbs who I adore with my whole heart. And who will make great leaders of the world someday I’m so proud. On a less gushy note, much like the Blood Angels, the Ultramarines really have a sort of profound feeling of protection and duty towards humans. They may not always like dealing with them, but Roboute is of the firm belief that they must understand what they are truly fighting for. Saving humanity is not enough, you have to fight for the humans who live there. (See, the one short story where they find a baby and I died.)

No but what you don’t quite get is that I literally love them. Every single individual solitary one of them, and while some may say “But Djem such a thing is impossible you haven’t met every Ultramarine” I need you to understand that the depth of my love for them and their Primarch is such that I know, in my bones, that I don’t need to meet them all to love them okay bc I already do.

Death Guard

Okay, so honestly I wanted to hate them (because BETRAYAL) but tbh its only the First and Second Captains who suck a lot and idk really the rest are sort of tragically precious??

Seriously, what is Mortarion’s issue?

No, seriously, what the fuck is their problem? Get the fuck over it.

Okay, I do feel bad. For Mortarian. Of all the traitors, him I understand the most. However, that being said, while I can understand his issues, I feel like giving yourself over to demons, turning into actual demons, and also turning on and killing your brothers who refused to become said demons makes you terrible awful people who really need to like, die.

Thousand Sons

okay, I fucking love these lame Warrior Monk Priest Wizards who live in a literal glass city with restaurants and teach random people Tai Chi in the park or whatever. Overall 10/10

I am v. worried that they are going to do something dumb like join the rebellion in order to affect change from the inside and then like, adopt demons or something. Pls don’t be dumb boys.

I don’t even fucking--look, I’m just tired okay?

What the fuck Azhek. No seriously, ⅞ is good enough? What the fuck is wrong with you?

Sons of Horus? Luna Wolves? who the fuck knows

my precious sons. You did not deserve what was done to you. This is why we don’t do frats. I believed in you and you failed me. D:

I love my precious sons. The Sons of Horus however, can go die.

I just--why are you the way you are?

I think the best thing about these absolute morons is that half the legion isn’t even demon fuckers, they just woke up one day and Horus told them to kill their brothers and they went “sure okay” and then just did. They are so fucking pretentious and stupid, fucking speartip, honestly die. I take it back. You all deserved exactly what you got, you dumb fucks.

Word Bearers

look, I haven’t met the rest of these dudes yet, but Erebus is a terrible fucking ambassador. -60/10 for not controlling their boy

HOLY LORD. I cannot--there are not actually words to describe how much I loathe these ignorant dumbasses. Like, seriously. Honestly, the ones who were purged were probably lucky, because the rest of them fucking suck.

God, eat a fucking landmine. Except, that would probably turn them on or something. Fucking assholes.

Just--imagine being such a fuckup that even when you were the first to the “become a demon, save the world” thing you still somehow ended up last. I hope the Ultramarines put down every. Single. One.

Salamanders

idk but this name is dumb. Salamanders are cute and slimy, and while Astartes are fucking adorable, they are not slimy. -1 for the dumb name

They are loyal, which is cool, and they seem like chill bros.

I just, like, they are sweet, but good lord are they simple.

I’m not sure? What they are doing? With their lives? Guys, idk if anyone told you but like, um. There is a war. And I get they’ve had it rough but also the loyalists could use their hope so maybe, idk. Do something? I mean I know there are like, 50 of you left and also you think your dad is dad and I feel you but like-

Raven Guard

idk but I like Ravens and Black, plus their Primarch’s name is Corvus? 11/10 they better not suck.

OMG I love Corvus?? Flies with a giant jetpack and tried to gut Lorgar? Yeah, he’s wonderful. Plus, their Captain seemed cool before he was fucking murdered.

I love them all, bless. They are sweet and simple and kind of stupid, but they make me feel things in my heart, so like, idk, stay precious.

Look, I cried over Branne fucking Nev, I don’t wanna talk about it rn

Alpha Legion

seriously? Lame.

Fuck these guys. What is their deal?

I can’t even really. I really, truly can’t. Nothing has ever satisfied me the way I was satisfied when Alpharius literally lost his head. God, that was beautiful.

Or Omegon? It was actually Omegon? I don’t even know anymore man

[karhs]

OR he never became a demon prince and everyone just like. assumed he did. bcause all the other traitor primarchs who survived got prince'd, n it's not like anybody's gonna go ask fuckin Perturabo how he's been doing since the big scuffle. they just marked him down as demon and resolved to never talk to him again if they didn't have to

Me: sitting quietly folding clothes.

My brain: Hey, you know what? WHAT IF PERTURABO NEVER ACTUALLY BECAME A DEMON PRIMARCH; HE JUST MADE IT UP SO HE DIDN'T FEEL LEFT OUT/LESS COOL AMONGST HIS NOW-DEMONIC BROTHERS!? MAYBE THAT'S WHY NOBODY'S SEEN HIM FOR OVER 10,000 YEARS AND NOBODY KNOWS WHAT HIS DEMON FORM LOOKS LIKE!!

Me:

[kit-williams]

WIPs

Ideas that have a plot, no outline, and I just wanna write rawdog (aka not in the notebook) assume these titles are only here for this statement

Hey Doctor Doctor - Husbandry Anrir A Moth to a Flame/I belong with you - Mortation x Isolde (shes a perpetual oc) A mother's love - Iron warrior family interaction When the truth slips out - Perturabo x Penelope (oc) Brittle Iron - Penelope (oc) The Horror of our love - Demon Prince Perturabo x Penelope Cryptid Curze - Konrad x some poor woman Eyes of the Emperor - Retired Custodes Canon Divergence - Yandere Konrad x Sorsilla

I should probably write outlines for these aka I've stalled on these

Spring and a Storm - Demon Prince Perturabo interacting with Ajax Against the Kitchen Floor - D&D AU Konrad x Gloria(oc) Legion Mother Lost in the Warp: Death Guard - Mortarion x Isole Yandere Konrad x reader/Vulcan - (This one I got an ask for and misinterpreted it and once it was cleared up I was okay with it (( / means platonic relationship right?)) (((I'm so fandom old I dont remember))) Space Marine Husbandry Word Bearers (Twins) ((I have an idea for them)) Jihias Spray Sirius Spray

These are written outlines

Yandere Corvus Corax Yandere Huron Blackheart

These need to be typed onto the computer

Anrir Husbandry Debute No Longer You - Perturabo x Penelope Twincest thing Fallen to Chaos Tulio Mer Zul Nubin Spray Tulio Spray Zul Spray Gabriel Kiss Omegon Kiss Ari Kiss

Debating on posting it here

A Doom Marauder rape fic DD:DNE type deal

[asklionjonson]

If you asked somebody to make a fort woukd you ask Dorn or Perturabo and why?

Dorn because he's not a demon prince and what others call awkward silence we call a moment of peace.

[askrobouteguilliman40k]

The Traitor Primarchs have gathered for a conference call...

MAGNUS- Guys, guys, you gotta come out of retirement and see this.

MORTARION- Shut up nerd.

MAGNUS– Hey remember that time you voted to shut down the librarius? Guess what you dumb jock, I’m the biggest damn model in the game now and I’m swole as hell! Deal with it.

PERTURABO- Will you two quit it? I need complete concentration while I paint the gemming on the lenses of these lascannon scopes for my land raider model…

FULGRIM- That’s boring.

MAGNUS- You think everything that doesn’t involve warp dust is boring.

FULGRIM- I have a problem.

MAGNUS- Alright, if you’re all finished-

LORGAR- GLORY TO US, FOR WE HAVE BECOME GODS! ALSO WHATS UP?

MORTARION- Speak up my ears have rotted off I can barely hear you.

MAGNUS- Damn it Lorgar do you have to yell every time you pick up the vox?

ANGRON- YES HE DOES. WE ALL HAVE TO SHOUT, OTHERWISE I CAN’T HEAR ANYONE ELSE BECAUSE I AM SHOUTING TOO LOUD.

LORGAR- HEY THIS IS GREAT RIGHT? DIDN’T I TELL YOU GUYS TEN THOUSAND YEARS AGO HOW GREAT THIS WAS?

MAGNUS- You mean Erebus told us, right?

FULGRIM- Yeah it’s pretty great.

LORGAR- GLORY! GLORY AND CHAOS!

MAGNUS- Alright everyone just- SHUT THE HELL UP FOR A MINUTE!

PERTURABO- Damn it. You made me drop my brush.

MAGNUS- Listen guys, I just won a huge GT. I came back with a new model and four of my princes, and I just walked in and hosed everything. The psychic phase is totally bloated and the imperium is completely screwed. You totally gotta come out of retirement, it couldn’t be better out there if I planned it.

MORTARION- So you admit you didn’t plan it.

MAGNUS- Shut up.

ANGRON- YOU MEAN LIKE THAT TIME I KICKED THE CRAP OUT OF ARMAGEDDON?

MAGNUS- No Angron, nobody remembers that. I mean like, holy crap guys, ten thousand years ago it was 1989. Now everything is plastic and Cadia exploded. It literally exploded! That prick from the Black Legion, you know, Horus’s step son? He finally pulled the trigger and sealed the deal. Chaos is blowing up man, literally. Blowing up planets.

LORGAR– AS IS OUR RIGHT AS THE INHERITORS OF CREATION AND-

MAGNUS- No you idiot, shut up for a minute. I mean we actually did it. All those Cadian regiments? They’re unemployed. Homeless. It’s not like Angron’s fake demonic invasion that didn’t do crap, and then got out shined by the orks, Cadia is gone. It’s space dust. It’s freakin Alderaan!

ANGRON- OK I ADMIT IT, THAT’S PRETTY GREAT.

PERTURABO- And what did the loyalist primarchs do about it?Magnus

MAGNUS- That’s what I’ve been trying to tell you morons!

PERTURABO- Spit it out then, you windbag!

MAGNUS- THERE AREN’T ANY. IT’S JUST GUILLIMAN. HE’S THE ONLY ONE WHO SHOWED UP!

FULGRIM- Wait, didn’t I stab him and put him in a coma? I don’t remember, I was tripping balls.

PERTURABO- Of course you were.

MAGNUS- Well he’s back, and the whole Imperium of Man is a gong show. We’re taking this stuff to the bank, and he’s got his hands full. Also there’s some crap about the Eldar doing something with their god and he’s gonna fight Slaanesh or something, I dunno Fulgrim you might want to look into that.

FULGRIM- Commoragh girls are into-

MAGNUS- Stop right there. Don’t finish that sentence. There are plastic Sisters of Silence now and they don’t need to hear whatever lewd thing you were about to say.

LORGAR- TRULY IT IS THE HOUR OF CHAOS ASCENDANT!

MAGNUS- Please stop yelling into the vox. Also yes, it is. That’s why I called all you idiots.

LORGAR- BUT I ALREADY KNEW IT WAS THE TIME OF-

MAGNUS- No, I knew it. That’s -my- gimmick. You’ve just been saying the same stuff ever since you ascended to demonhood because you’re a brown noser. This time it’s actually happening.

PERTURABO- Unless Guilliman has something to say about it.

MAGNUS- PFFFT. What’s he gonna do, re-hire Matt Ward?

(source, Spikybits.com))

[warsofasoiaf]

I admit that if 40k does have it's own age of sigmar like rebirth or something akin to it, I do hope it has something like the fully ascended god emperor managing to actually humble and best all the chaos gods or at least prove himself as powerful as all four combined AND be a benevolent deity. If only to give some balance to all the grimdarkness.

My mentality is a bit different. I am ok with the grimdark, as long as you ditch the “forget advancement” mantra. My ideas wouldn’t work in the setting because it would require some retcons on Perpetuals and Perturabo. The Emperor dies, most of his soul fragments become the terrifying new God of Order, plenty of Mechanicum and humans succumb and surrender their free will to become the will of this new God. Perturabo becomes the First Demon Prince of this new God, but isn’t the last, as some of the Emperor’s Living Saints and Great Astartes champions gain power in their crusade to unite humanity. Chaos is in upheaval, new transformations arise as the new Emperor-God unleashes horrifyingly effective campaigns against Chaos, using his great might to crush the disorganized daemon hordes, subvert the Tau Etherals and leave Farsight as the remnant similar to the Craftworld Eldar, and desiring nothing more than to find the last pieces of his soul.

The pieces of the soul that are human and represent the good of humanity is reborn into an infant, but this infant is weak and needs protection from the loyalists until it can grow. And it requires instruction, immersion in humanity. The new age is full of heroism, if sacrifice, of humanity in the face of horror. It’s a place of nobledark, of individual companies leading kill squads away from the infant, of guarding your thoughts carefully from the Inquisition molded into a terrifying new Thought Police to search for human infiltrators against the new God, of struggle to find food and resources, of no communication, of valor against the dark.

Thanks for the question, Anon.

SomethingLikeALawyer, Hand of the King

[lurkeresq]

Iron Warriors for Iron Hands. Ferrus Manus, silver-eyed and silver handed, Dragonkin and Dragonslayer, burning with the heat of the forge, makes a way cooler demon Prince than Perturabo. And "the flesh is weak!" is bordering on heretek nonsense anyway.

Plus, the pre-heresy Iron Warrior's fatalism fits way too well with the M.39 and M.40 Imperium. Also, it's always fun when loyalist legions have rivalries, so watching the !Loyalist Iron Warriors interact with the Fists would be amazing and hilarious.

You can alter the threads of time to redeem one Primarch and his Legio during the Heresy, but at the cost of a loyalist legion falling to Chaos in their stead. Who do you pick and why?

If you choose one of the four marked traitor legions, the loyalists also fall to that particular Chaos God.