Is it odd that I took my sister to the prom?

It is not odd. It is a time-honored practice and going to the prom is not incest. It was a lovely brotherly gesture and I hope you both had fun.

Think that's really good of you, you're a cool brother!

Why not??? I'd do it for anyone if I could save them from having to choose between going to prom alone or not going at all...

lol nope happened just the other day with a dude i know ,his kids took each other to prom

Cool, Did you get laid after the Prom?

No... Good for you!

Nope

incest is wincest