What are your hc about the the relationship between the siblings? Ppg rrb ppkg!
I just did the post about the Rowdyruffs that you can read here.
For the Powerpuff Girls, they're pretty easy considering they're the titular characters of their franchise. My takes on who they grow up to be aren't that much different from who we know them as but here a few more headcanons of their relationships as they grow older:
When the girls turn 18, Bubbles is the sister to pitch the idea of matching tattoos. Buttercup agreed "so long as it isn't lame" and Blossom is somewhat hesitant. The three argued for quite some time until they settled for one idea on Bunny's birthday. The three each get a purple bunny tattoo, Blossom's tattoo is on her shoulder, Bubbles's tattoo is on her left index finger (or on her cheek if you believe that the girls don't have fingers), while Buttercup's is on her thigh.
Blossom isn't against physical touch, she's just the least likely to initiate any sort of hug between her sisters.
IF Buttercup wants to wear a dress for some fancy schmancy gala or some other important black tie event, she allows Blossom and Bubbles to pick out the dress so long as they both approve of it.
(Honestly, Robin or Mitch could probably pick out a dress for her just fine, but she allows Blossom and Bubbles the luxury to pick her out a dress since the three don't go shopping together often.)
As they've grown older, most of the screaming matches arguments between the girls happen between Blossom and Buttercup. Blossom's passive aggressive while Buttercup's just verbally aggressive, leaving Bubbles to have to step in and play mediator (which she's gotten pretty good at).
However, if it's between Bubbles and Buttercup, their arguments get physical very quickly and Blossom has to break it up soon or it's gonna get ugly. Give them the rest of the day to cool off and they'll be fine.
Arguments between Blossom and Bubbles are rare but tend to be very passive aggressive, snarky, and petty, leaving Buttercup to snicker at some of the verbal comebacks.
Blossom's the sister who "borrows" clothes from her sisters if she's in a rush.
Bubbles is the sister to "borrow" other personal belongings such as hairbrushes, makeup, cellphones, etc.
I've never gotten the chance to talk about my version of the Powerpunk Girls (who were accidentally created by Dick Hardly) but these three girls are vicious, self-centered, and devious to all who know them. This includes each other.
Berserk would likely watch her sisters BURN if that meant that a drop of gasoline would never touch her, and they're both aware of that.
They only bother sticking around one another for safety in numbers.
While the Powerpuffs and Rowdyruffs may have some minor disagreements amongst themselves, the blues and greens have respect for their respective leaders at the very least. The same cannot be said for Brat and Brute. Berserk's only the leader so the other two can pacify her, she'd be completely inconsolable.
Brat would honestly make for a better leader, but the other two ignore her, which causes her to come off as whiny.
Brat's very possessive of her belongings and will fight Berserk and Brute at a moment's notice if they've touched her things.
Berserk instigates fights between Brat and Brute whenever she's bored.
While Brute usually keeps to herself, she'll disappear for days whenever she's had enough of her sisters' shit.
While the Powerpunks Girls are three dangerous forces to be reckoned with, they aren't as cohesive as either of their counterparts. They don't even have any team attacks/formations/routines (but since the Powerpunk Girls fight more independently, they're great at tackling groups head on then destroying each part of the group as if it were a limb to a body they were mutilating).
While the general atmosphere between the girls is hostile and borderline toxic, they will jump you if they're disrespected.