Soulbates

When both a man and a woman confess that they have masturbated to each other, either through pictures or other material. These two later become an official couple after said confession.

Man: There's something I have to tell you...I've masturbated to thoughts of you!

Woman: I'm touched...because I've masturbated to thoughts of you too!

Man: Guess that means we're soulbates. Want to go out?

Woman: Oh God, YES!