knee sex is when while making out with a guy(laying down), he carefully rubs his knee against a girl's crotch to stimulate her vagina and get it ready for fingering and/or sex.
girl 1: I wasn't going to go past 2nd base with him, but he started doing something with his knee and i went crazy.
girl 2: O he did the knee sex move. yea he does that well.
girl 2: O he did the knee sex move. yea he does that well.
by cavillea May 1, 2005
Very careful targetted groping of the knee, as well as under, below and above the knee to achieve knee-orgasm. Preferably performed by more than 2 people (gender is not an issue with knee sex)
Who's up for some knee sex?
by Anil Vij January 20, 2004
The lastest and greatest form of sex. It is done when two knees are pushed and rubbed together. It usually causes brusing.
Omg look at the bruises on her knee, she must of had some good knee sex last night!
You're a knee sex slut!
You're a knee sex slut!
by Blnde14 January 21, 2009
When a male and female are aroused the male takes his enlarged penis and sticks it behind a woman's knee and beats to his own rhythm
Jack and Emily are naked in bed so emily sands up and jack whoops out his fat cock and sticks it behind her knee and moves his torso back and forth and thts knee pit sex
by Jack and Emik December 30, 2009
1. the bruises on your knees from giving head.
2. the scraps and bruises on your knees from grinding in the "on top" position
2. the scraps and bruises on your knees from grinding in the "on top" position
by indubiately April 19, 2009
Dude why are you hobbling?
I have sofa sex knee from shagging my women whilst my best friend hid in the bedroom
I have sofa sex knee from shagging my women whilst my best friend hid in the bedroom
by AtomicJay May 4, 2021