stevie is all of tweek's anxieties and all of stan's lack of emotional control. he's just a nervous, shy little guy. while cc is initially pissed he exists, she can’t stay mad and develops a soft spot for him quickly. she is his protector of sorts, using her mean and off-putting aura to scare bullies off from picking on her little brother. She’s also the one who named him. Stan and tweek spent ages unable to decide on a name until she, in a fit of frustration, gave them a long list or options. The start of the list is mean-spirited and upset (suggestions like ‘new charley’ and ‘roadkill’ but the further they get down the list, the more genuine and helpful the list is) we havent really 🤔given him any friends, we havent ironed out this au a whole lot, but a fun fact is he and riley both exist and look more like siblings to each other than either of them do to cc, despite not being related to each other at all.