1 definition by indubiately

Top Definition
1. the bruises on your knees from giving head.

2. the scraps and bruises on your knees from grinding in the "on top" position
girl: OW! look at my knees! they're bruised as hell.

boy: but weren't those sex knees so worth it?
by indubiately April 19, 2009

Mug icon
Buy a sex knees mug!