Theory that a perfect ass has three attributes:
1. Lower butt - The lowest part of the ass, should be firm but not hard.
2. Middle-earth - Middle of ass, should be softer than the lower butt and stick out more.
3. Heaven - Highest part of the ass. "As above down below". Should be similar to lower butt.
Damn Joe, that ass definitely follows the theory of relasstivity!
by Nyota June 29, 2014
Get the theory of relasstivity mug.