My genderbent walks through a portal and enters into my world.

Me: Oh, wow.
Colt: What the?
Me: It looks like I have a brother.
Colt: And it looks like I have a sister.
Me: Wait, I only have a sister. You must be my genderbent.
Colt: Yeah, that makes more sense.
Me: Want to prank my friends and say you're my long lost brother?
Colt: Yes.

Later

Me: Guys, meet my long lost brother, Colt.
Elemental: 0-0
Time: -_-
Galaxy: O0O
Rainbow: Wow.
Cosmic: I-I just. What?
Forgotten: Kat, how did you find him?
Colt: I found her.
Me: Should we tell them?
Colt: Yeah.
Me: He's not my brother.
Rainbow: What?!
Me: He's my genderbent.
Time: Knew it.