Villain Fenton au 3
Danny is the son of the two biggest supervillains in the world. He has weekly get togethers with the legion of doom, and those villains came to every single one of his birthday parties growing up.
Needless to say, Danny has no friends his own age. To remedy this, he creates a persona: James Nightingale: normal high schooler.
Now, his parents and extended villain family all know this. How could they not? He learned all his tricks from them, after all. But they let him have his fun. After all, every villain needed a secret identity.
But now Danny has a new problem. He’s pretty sure that Lex’s clone son, Kon-El, has a secret identity and goes to his school. He can’t prove it, but he’s positive that the teen boy is the same. Conner Kent is an oddity, but he speaks with the same tone of voice as Lex, and has his smile and eye color. But he has those dorky glasses that Danny’s pretty sure he doesn’t need.
Danny’s first goal to being a normal teenager is to befriend Conner Kent.
I can imagine, in the direction of Crack(TM):
Civilian/normal teenager Danny persona: Conner Kent is my bestie!
Villain Danny persona: Superboy shall be my (bestie) nemesis! Muahaha! Also Superboy, can you ask Superman if he's partial with his X pie recipe?
Superboy/Conner Kent: ... I'm pretty sure that my new friend(?) has a Split Personality disorder or something of the likes. RR, have you ever dealt with something like this..?
Red Robin, who had basically another personality in the form of Joker (or Joker Jr, up to you) at some point of his life:
Also Red Robin, whose mentor Batman has a literal Rogue named Two-Face, personality literally split into two: