It's non penetrative sex. The man puts his penis between the other person's thighs and fucks.
"Yesterday I had intercrural sex with Josh."
"Oh, why?"
"He didn't want me to fuck him in the ass, so I fucked him between his thighs."
"I have to try it too."
"Yeah man, you should."
by Appuru February 26, 2016
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Non penatrative sex. Kinda like dry humping with clothes off. Wet humping!
The pornstars only got to the intercrural sex portion before the director called cut.
by DawnMasonCullen January 10, 2014
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Said to have been the most prevalent form of sex between men in the ancient world and still the case in many parts of Asia and Africa. The "top" places his lubricated, erect penis between the closed thighs of the "bottom", and ideally the head of the penis slides onto the "taint", the area between the bottom's balls and anus. This area is very erogenous, a fact that is surprisingly not well known and feels very pleasurable to the thrusting top. It is also so pleasurable to some bottoms they can come from this alone.

It's important for novices who try this to experiment with the right rhythm because it can seem silly at first, but once they get going it becomes their preferred sexual activity. Much, much safer than anal penetration. taint
Tom asked if we could try intercrural sex. I was skeptical at first, but now can't wait to do it again.
by Achieving lift-off December 17, 2016
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