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Concrete sex is when a man is giving anal and knocks the person receiving the anal out. As they have knocked them out the muscles in the anus grow tight and trap your penis inside the anus until the receiving person wake up.
I was having Concrete Sex with jenny the other day and I knocked her out cold for 30mins. Mate my dick went numb
by Calhayes1 May 10, 2014
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Damn that was a steezy ass kickflip son!
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