I know when I'm cold my sack tightens up like a plumb and when I'm warm it loosens up to look like 2 grapes in a plastic bag. When I'm near climax the sack also shrivels/tightens.
What does all this tightening and loosening mean?? I'm pretty sure the tightening has nothing to do with literally squeezing the cum out, so what gives?
What do yall think?
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