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lube such as KY jelly or similar. Like jam on bread, a little fuck jam can make the humping a bit more fun and interesting.
Honey, could you pass the bottle of fuck jam.

Oh, we're all out of KY jelly, looks like we'll have to swing by Harry's House of porn on the way home and pick up some fuck jam.
by Big Jim Powell February 17, 2009
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the other night after a blow job i covered my girl with fuckjam

the other night after growling my girl she spirted fuckjam on my face
by J_C McPhuck March 30, 2011
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