Learned it in adulthood from my fiancee, actually, in Madison, WI.

Good girls sit like this (fingers crossed, pointed down)
Bad girls sit like this (fingers closed, side-by-side, pointed down)
And girls who sit like this (fingers apart, pointed down)
get this (middle finger up)
like that (snap fingers)

Kyle
Madison

Tags: hand gestures, sex, vagina | Category Miscellaneous