A sexual act in a threesome that includes at least two males if heterosexual. In the threesome, the two males enter the vagina (heterosexual) or anus (homosexual) at the same time and two guys literally screw the one on bottom at the same time.
Met this real hot girl online last night just before bed. I just wanted a quick booty call and when I got there...there was another player there and she begged us for double penetration. That was one of the hottest experiences of my life.

two simultaneous
by TheBigCanucklehead March 22, 2015
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the act of sticking a hand in between the back of a thigh and calve. can use a rubbing motion
Her leg was chaffed from all the leg penetration she got last night.
by courtanee April 22, 2008
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To penetrate a girl in as many ways possible (Up to 10, Vagina, Anus, mouth, both nostrils, both eyesockets, both ears, and the belly button if you push hard enough)
Maximum Penetration has only been attempted 17 times.
There have been no survivors.
by jasonk123 January 29, 2006
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where u stick ur dick and penetrate someone in their asshole
"ayyy mandem i penetrated this hoe so hard she cried."
Penetration // hard penetration // penetrated // penetrate means that you have stuck ur dick inside someone and lost ur virginity
by ZeekifyOG January 13, 2017
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