What is Cumathlon?
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A challenge between two or more
"Sasha was victorious in the last cumathlon after receiving over 9000 facials and swallowing around 20 gallons of sperm."
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Sexual act/position from behind. Slip your manhood full tilt into your lady's cooze, then just before you jam your thumb into her ..
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one who gets it off to kitty porn
michael jackson is a professional cat squeezer
See evan..