#instead of trying to fight Adam alone Charlie and Alastor fought him together

[blue-rose-soul]

What if charlie and alastor grew up togethr ?

For that to happen, Lucifer would have had to know about Alastor from the beginning*. I don't think he would have taken Alastor away from Nicaise, and she wouldn't have wanted to live in Hell, even if it did mean living in luxury. The guilt and the feelings of betrayal are still there - it certainly doesn't help his crumbling relationship with Lilith - but Lucifer wants to keep an eye on his friend and their child. So he peeks in on them on Earth, occasionally pops in to grant a couple small miracles or gifts. Never staying long just in case Heaven catches on.

Then Nicaise is murdered by her employer. And there is no way in hell that Lucifer is allowing that fucking piece of shit to keep her child! Lucifer books it over as soon as he can and finds Alastor sleeping in a shed and, oh, he is not happy. He doesn't kill Nicaise's murderer. It's enough to flash his wings, horns out, spitting flames as he informs the man that Hell is real and he's bound to it before disappearing with Alastor**.

So now, in just the span of a few days, Alastor: has witnessed his mother's violent murder, has been effectively kidnapped by her murderer, was forced to sleep in a shed that smells like dogs, found out that angels and demons are real and that his father is one, has been whisked away to live in another world that transforms him into a monster as soon as he enters it, and is now expected to get used to living with his mysterious father as well as a new step-mother and half-sister. Needless to say, it's a lot.

So naturally, he's a bit shaken when he first arrives in the Morningstar household. He doesn't speak and spends most of his time shut up in his new room which is way bigger than his old house was. Lucifer's awkwardly trying to balance giving him the space he needs and make him feel welcome. Lilith isn't terribly thrilled with the situation, but... Well, she seems to have a lot of compassion for her people. I don't think she would really turn out a traumatized child, but she's definitely going through some complicated emotions of her own.

Charlie has none of the reservations the grown ups have. In fact, she's suuuuuuuuuuper excited to meet her new little brother! Even if he doesn't look that much littler than her***. So she slips into his room, tries to drag him out of bed, pesters him, and generally just acts like an excitable, friendly child. As much as Lucifer and Lilith try to get her to give Alastor space and time to adjust, she keeps coming back. Her little brother looks so sad and she doesn't want him to be sad! She wants to help him feel happy!

She remains persistent, telling Alastor all about her home and family and insisting that he'll like it soon because her mom and dad are really nice and she loves him already and he'll love it there in Hell and...

She stops as she sees the tears start to roll down Alastor's face. Charlie begins to panic, thinking she's said something mean by accident, but then Alastor sobs out that he misses his maman and just wants to go home! Suddenly Charlie feels really bad. She doesn't know how to make things better. So she just stays. Sits next to him. Doesn't leave him alone. Sheds a few tears of her own.

Once Alastor's cried it out and tired himself out a bit, Charlie asks him what his mom was like. They spend all night talking about her. When Lucifer goes to check in on Alastor later, he finds both kids passed out on the floor in a pile of blankets.

It's still rough going from there on out, but Charlie plays a large part in helping Alastor heal after everything. Some things still stay the same. Lucifer and Lilith's marriage still struggles, she disappears, Lucifer pulls away from now both of his children in his depression. And Alastor still has a lot of anger. He doesn't really agree with Charlie's goal of redeeming sinners because he fully believes that some people just aren't worth redeeming.

Still, he goes with her whenever she searches for injured sinners after the exterminations. He and Vaggie actually get along a bit better here. They still snipe at each other quite a bit, but there's an almost friendly undercurrent to it. And although he doesn't really believe in the goal of redeeming sinners, he does go along with the Happy Hotel project just to help Charlie out. Doesn't stop him from mocking the idea every step of the way.

This version of Alastor hasn't really developed the Radio Demon persona. He doesn't exactly need to, given he's the Prince of Hell. But he's still Alastor and still cultivates a terrifying reputation for himself. Charlie's grown up with this Alastor though and knows the man behind the curtain. She's not always happy with how quick he is to suggest violence as a solution, but she also knows that when he sees a weaker demon being preyed upon by stronger ones, he'll step in.

He's also protective of Charlie, and usually takes it upon himself to step in and do things that he sees as necessary but he knows she wouldn't like. For example, after finding out how Valentino treated her when she went to the studio, Alastor pays his own visit in private and makes sure Valentino knows if he tries to pull any shit like that again, Alastor will pick apart his soul piece by wretched piece and scatter it across all the rings of hell. Charlie knows he did something when the next time she sees Valentino, the pimp screams bloody murder and throws himself out the nearest window.

(*Just imagine Lucifer, wings out, attempting to drunkenly climb out of Nicaise's window, only to get stuck, give up, and slump over on the floor.)

(**The old bastard spends the rest of his life donating his wealth to build orphanages and hospitals, helping the poor, and basically trying to buy his way into Heaven. It doesn't work and he's slaughtered during his first extermination in hell.)

(***Charlie at this point should be roughly a century old, but to be honest, I'm not entirely sure what that means for a half-angel half-demon like her. Did she age at a typical human rate until she reached young adulthood and then just stopped? Or did she just age very very slowly? I'm going with the second for the sake of this AU. I also have this theory that Lilith never actually died, and was transformed into a unique sort of demon simply by entering primordial Hell. And something similar happens to young Alastor when Lucifer brings him home.)