actually. imagine that sly still had TUC and met carl anyway, who as a dragon, would be unaffected by it (bc theyre canonically immune to it!) and who loves her anyway despite it. it could be interesting! but instead we got jacking off warrior and doing things without consent in the way of indulging fetishes of him.
Carl having a really hot body (/nsx) because he has fire powers. He could hug Sly to give fen some comfort for her cold, almost ice body.
Both sleeping in a bed, spooning. Sly ofc being the lil spoon because she needs to be warm... Carl also using his wings in bed to create the warm atmosphere where Sly is.
Carl can also use his wings to protect Sly from degenerates, disgusting people who wants to fuck fen.
But TUC Sly would also be cool to bond with Frosty!! :D Can you imagine that? I dont think Sly would hate Polly like Frosty does, but instead feel pity at them.
"Give yourself a rest...Please. I am the only one you can be honest with- Uh- I know how you feel."
"I am...tired." Said Frosty, finally dropping the fake smile she always carries.
"I know, but-" an alarm screams in Sly's pocket, she had set a reminder to go out with Carl. Sly remains silent for a few seconds, thinking. "H-Hey, wanna go out with me and Carl?"
"You know i dont like to go outside with unknown people, you know why..."
"Dragons are immune to TUC effects. You are going to safe with us. Carl is not the type of person who just stands when a problem happen, he will protect us if something happens."
"Do...you know how it feels to be surrounded by people who just--"
"...Y-Yeah, it sucks. But you are going to be ok with us. I-I am worried about you, you deserve to go outside without being worried of so much horrible things."
"...Pinky promise we are going to be ok?"
Since Sly canonically stopped TUC by using puberty blockers, I think some effects would not have effect in Sly. Like the dull and monotonous mood TUC usually gives to everyone...Sly has her normal emotions intact.
Her memory also suffers problems, and needs to set reminders to remember.