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1.
When a guy places his cock in the center of another guys well defined abs and thrusts up and down, similar to titfucking, only in this case, a set of 6 or 8 pack abs.
I straddled Ryan while he lay on his back and abfucked him for a bit, those tight abs of his felt amazing.
by Ripped Jeans February 26, 2011
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