Can only be between a straight girl and a lesbian girl. It is when you manage the turn a straight girl into a lesbian for, but is not limited to, one night stands, hookups, relationships. A step up from experimenting but doesn't necessarily lead to permanent bisexual/lesbian status.
My friend Melissa's boyfriend is gonna be upset when he finds out that she hooked up with Vincey. She must be Vincesexual.
by Mississippi 09' June 12, 2009