Funny, I've asked myself this very same question. My conlusion: Duh! You would be the "Dr. Spock" of masturbation...hands down. Silly girl.
HAHAHA that would be so cool. hmz, yeh kinda sort of masturbation, ew but it also looks like you having sex with your 'twin'! haha it's incest!
I think that you would cease to exist anymore. You would make a giant paradox and just explode