#mechpreg

[blackpensils]

Chapters: 21/? Fandom: Transformers Animated (2007) Rating: Explicit Warnings: No Archive Warnings Apply Relationships: Megatron/Optimus Prime Characters: Megatron (Transformers), Optimus Prime, Sari Sumdac, Bumblebee (Transformers), Ratchet (Transformers), Bulkhead (Transformers), Prowl (Transformers) Additional Tags: Enemies to Lovers, Accidental Pregnancy, Mech Preg (Transformers), Transformer Sparklings, Autobot/Decepticon Cross-Faction Sexual Interfacing, Autobot/Decepticon Cross-Faction Romantic Relationship, One Night Stands, Sticky Sexual Interfacing (Transformers), Spark Sexual Interfacing (Transformers), Dom/sub Undertones, Light BDSM, Non-Sexual Bondage, turned sexual bondage, Kidnapping, Implied Consent, Sexual Tension, Spike Modifications (Transformers), Size Kink, Size Difference, size queen Optimus Prime, Canon-Typical Violence, Energon (Transformers), Unplanned Pregnancy, Pregnancy Kink, Canon Divergence - Transformers Animated (2007) Season 2, Cybertronians are a dying species, Smut starts straight away, Porn With Plot, Knotting, Sexual Frustration, Masturbation, Ice Play, Angst and Romance, Team as Family, Enemies With Benefits, Optimus Prime Needs A Hug, Protective Megatron (Transformers), Megatron is mildly obsessed with Optimus Prime, Pregnant Sex, We'll get there too, Sexual Fantasy, Wet Dream, Multiple Orgasms, Multiple Sex Positions, Transformers pregnancy is borderline body horror, Transformers Spark Bonds, Optimus Prime is repressed and has kinks, Shared Headspace, Mind Sex, Emotional Hurt/Comfort, Megatron has some tender moments, Optimus Prime Has Issues, Archa Seven traumatised Optimus Prime, Megatron has a biting kink, Blood Kink, Aftercare, Decepticon Culture (Transformers), Autobots don’t practice aftercare, Autobots Shitty Sex Ed, Decepticons have a healthier relationship with sex than the Autobots

Summary:

“You're going to let me go," Optimus repeated, more sure of himself now that he saw the hints of condensation beginning to form on Megatron's plating. The silver armor moved and expelled hot air while cooling fans thrummed away inside the warlord's large frame. Megatron might be a Decepticon war frame from before the Great War, but he was still just Cybertronian, so Optimus made his proposal. "And no one has to ever know what happened here today."

Megatron feigned mussing it over for a few nanokliks. He tilted his helm to the side, observing some crack or dent in the wall above Optimus' helm before he leaned down. He pressed the full weight of his array into Optimus' own. The heat of the black metal cover made Optimus whimper and buck.

"We have a deal," Megatron whispered.

[cozzzynook]

Ratchet believes he’s past his sparkling bearing years. Not even having a ton of sparklings sired by Drift (Rodimus gets one or two in there too lol) is enough to dissuade him from thinking he’s old. Honestly it’s become a running joke on the Lost Light, the harder Ratchet believes he’s past his prime, the more likely it is he’s having another sparkling.

You poor old milf medic, tut tut tut.

Should’ve been more careful with that fertile valve and those beautiful birthing hips

[cellberry]

While we're on the subject...

hey transformers fandom i have a question for you

[startheskelaton]

I made a bet that I’d draw Optimus Mpreg if the Eagles won the superbowl… score was 22-40.

…. They keep saying “chop chop mpreg boy” on Twitter…

I’m not even a dude, I’m a girl

[violetaquadelight]

I can't believe it either buddy.

[bromomentum]

When Starscream was carrying, did he have to go through any of the organic-esque problems? (i.e. cravings, mood-swings, tender spots? If so, he must've worked Skyfire to the wire.)

Plus did he ever feel something equivalent to kicks? (Spark flares for protoforms? idk).

Yeah, you can say that he did have cravings. (Tho most of the time he didn't know what he craved, and before Sky let it drive him insane, he just accepted his new reality.)

As for the "kicks", they were more like shocks of static/electricity, and Star suffered them often. Sky would often talk to them and swore the little shock were them answering to him.

And the kids being mixed did not help either. Starscream felt like he was carrying a sack of canonballs inside his cockpit, so flying only got harder from there. Sky would offer to carry him if Star ever got tired of walking (which was often.)

[starscream-is-my-wife]

One of my headcannons is that Primes can't get pregnant because their chests have their sparks, T-cog, and the matrix, there's like, no room for a sparkling. The matrix is like an IUD lmao

so instead their sire protocols are just really strong since their carrier one can't activate, RIP Ratchet though that sparklings gonna be huge

[godswprk]

👁️👁️...

[my-anndreamer]

I made a sketch! I fell in love in Bee Earthspark, he so cuteeee!!!! ^^ By the way Bumblebee is now on his 15 month of spark-pregnancy

Bonus!

Breakdown will spoil this sparkling <3

[sirveltic]

Jazz hears his bitlet for the first time

[the-sheep]

Hi sheep!!!!!! Im a new follower so i dont know if you still do tf asks but thinking about star telling hashtag about the sparklings makes me think of the first few scene of hotel transylvania 2 where they go flying. Sorry if its corny fankids make my heart tender😭

Thats a fucking adorable scene. i have not watched hotel transylvania 2 but WAH.

telling the kids about impending siblings did not go as planned

He doesn't really get to announce it, the kids just Figure It Out and he then confirms it.

Bonus panel that didn't fit in the pacing i had in mind.

[sweet7simple]

Mech Pregnancy and Protoform Development of Gestating Sparklings

Here is what I have compiled on Cybertronian "reproduction" from More Than Meets the Eye, specifically the Holiday Special and Volume 5:

Holiday Special:

So this would be the protoform development for a forged sparkling and it lends support to that, if Cybertronians gave birth to their own Sparklings, then they would likely be an egg-like form (yes, I know it's not actually a sparkling, but can we all agree that Swerve is strangely well-informed on protoform development for forged Cybertronians?)

So what would slide out from the gestation tank has no discernable features yet and still needs hours if not days before the protoform resembles an adult Cybertronian, but I still don't have an answer for the size of this thing - at what point does it reach its full size? Cybertronians before the war went to academies, so what point does the protoform receive an education instead of having relevant information jammed into its brain module right before deployment like a MTO cold construct?

(More under cut)

But, let's be honest, I am going out of order here. Let's go to Volume 5 where we encounter a hot spot of re-ignited sparks on the moon:

So this is being constructed cold.

And this is forged - as well as the official story for how cold constructed bots were made, which apparently differs from the truth. Here is the truth for how cold constructed sparks were actually formed:

So all cold constructs were made from the matrix - but what if they did come from igniting healthy sparks to make new ones?

What if you used the energy of two sparks to create an entirely new one and that sparkling attached itself to a parent spark for some time before it dropped to a gestation tank (this is common in fanfiction and I love it so much, it makes the most sense)? As these two orbs of immense power and life resonate with one another, creating waves of energy that can be interpreted as pleasurable for the interfacing bots, excess energy could gather itself into a separate orb that borrows the life code from both parents, becomes randomized, and this creates a new life code for a separate entity. It stays in the spark chamber for a period of time - I don't know, decoding or storing energy or something, I am very bad with electronics - before dropping down to an artificial gestation tank.

And this is where the valve/plug comes into play if you so desire because now we have the issue of, where is the spark going to go? It needs a protoform. It needs the materials to make a protoform. It also needs liquids.

Cybertronians seem to live off energon and anything you can make from energon, but there have been references and images in the comics of Cybertronians have oil as a waste product, so they need a separate compartment for oil away from their energon tank and they also are said to have (in fanfiction, at least): oral solvents, lubricant, transfluid, optic fluid, etc... All those will require their own compartments and they will all have either been diluted from the energon or will have an origin in a separate liquid that isn't mentioned. Let's keep in mind that they will also need some sort of oil for their hinges and their nanites for upkeep.

So I believe these gestation tanks are where the Sparklings develop their egg-like protoform with all these liquids that they themselves can't make yet, and I think they get what they need from nanite colonies as there is no umbilical cord (not unless you want the bots to have belly buttons). I like to think of them as nannyites - nanites that, once a protoform hits the gestation tank, have latent codes that becomes active and now have protoform-related tasks versus whatever tasks they did beforehand. The nannyites will likely take these resources from the carrying parent, everything from fluids to energon stores to living metal that the nannyites will adapt or make compatible for the sparkling.

So this carrying parent suddenly has fewer nanites colonies themselves, a thinner layer of living metal, and depleted storages of fluids.

Hear me out, hear me out: Valveplug interfacing helps the carrying parent because transfluid will contain necessary materials for the protoform.

I am going to take it a step further and say that it is that first shot of transfluid into the gestation tank during spark and valveplug interfacing creates input that electronically signals to the receiving parent to gather the excess energy from the spark play via centripetal force like a satellite and that force signals the excess energy to turn on life codes it recycled from both parents and create its own life code. That transfluid inside of the gestation tank also turns on those latent codes for the nannyites to get the compartment prepared. It's that first dose of necessary materials and every dose of transfluid after that is stored in the gestation tank for the protoform.

Which brings me to the idea that I have seen on AO3 where bots go into heat:

What if a mech goes into heat as a way to store transfluid from their partner?

I am largely talking out of my ass here because I don't know anything about how machines work, but I know there are a lot of hormones and signals and work that goes into human pregnancy.

The downside of this is that, if all bots were once forged and now they are, let's say, "birthed", then these constructs would be artificial: the gestation tank and the fertile centripetal force with its satellite sparkling and the interface array with its gestational passage and the nannyites and the transfluid. These would have to be constructed cold and surgically added, and you would have to create codes that turn on these cascading or stacking protocols (I don't know the correct computer term for when one event triggers another event triggers another event and so on) and you would have to manufacture filters and tanks and lines for the creation of gestational lubricant and transfluid.

This is just me rambling because I can't stop thinking about all this, but I am not ready to write a mechpreg story.

Please talk to me about Cybertronian reproduction, I am not normal about this.

[rinn-04]

Megatron is the carrier but the sparkling(s) likes to sit and hid inside Optimus's chassis because they can see EVERYTHING they want from the inside without anyone can see them thus it's the best hiding spot from strangers and it's comfy and warm in there, plus they even have their own night lamp (it's the Matrix of Leadership) 🙂‍↕️🙂‍↕️🙂‍↕️

[yayasvalveplay]

I love this trend of designing (animated) Optimus as breedable. TFA? That hip to waist ratio. TFP? Same but he comes with built in handlebars for backshots. Even Bayverse Prime has his ridiculous cheerleader outfit showing off his tits and thighs.

TF1 Orion Pax though is the most breedable simply because he gives off major “freak” vibes.

tfa op: His entire build, but also slut lips that are waiting to be kissed when being stuffed full of transfluid.

tfp: smoke stakes on the back that Megan can grab as he's plowing Op from behind.

bayverse has fire details on his tits, and he sports a loincloth going over his mother bearing hips. Op can sit on Megans spike and no one would know bacuse loincloth is in the way.

tf one op just being a freak is 100% a reason for him to be breedable. plus he's a brat that D-16 needs to tame by fucking a litter into him.

[pollopom]

life is so yaoiful

[valve3nthusiast]

Having a great time imagining Jazzwave fuckin sloppy style in some quiet corner of an active battle

Having an objectively hilarious time imagining Soundwave accidentally getting pregnant from it and Megatron systematically shaking down every single Decepticon to find out who incapacitated his TIC until the dots start connecting. Obviously he then launches a raid just so he can declare directly to Optimus Prime's face that he will "track down the autobot fiend that BESMIRCHED and DEFILED his Third's honor, and separate their interfacing equipment from their body!" (while Soundwave facepalms in the background and Jazz pretends he totally isnt completely shocked and also panicking a lil bit)