Oh yes, and don't forget the pinkie swear! That will keep her from screwing all your friends for sure!
Ah yes, that too, but I'm fully prepared! I only befriend with ugly people, so there is no need to worry about that too much. This also makes me look much prettier when I stand next to a group of drunken misfits in my cool guy suit! Also helps if you have only full gay friends who wouldn't get their cocks hard next to a woman even with a help of viagra...