Dewit's First Law of Cubic Female Dynamics 

see also Cubic Female Dynamics

If you sleep with one girl in one night, you can stop. However, if you sleep with two girls, you must sleep with three girls. Due to the difficulty of the task, and the possibility of alcohol, the third girl can be an utter sea donkey.

"Thats like scoring the first goal of the game late in the second period, then, getting the go-ahead-goal with 7 minutes left in the third, and then your last goal is an empty netter with 20 secoinds left, its garbage, but you need the stats."

Dewit's First Law of Cubic Female Dynamics by Sheldon January 24, 2004