It's like penisex except tighter.
You wanna have some penisex?

Nah I'm in the mood for something tighter. How bout ballsex?

I'm in!
by Thatballsexguy August 30, 2009
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When one guy is getting one ball sucked by a girl and the other by a guy

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I just had bisexual ball sex, the guy was better

What to have some bisexual ballsex, you suck one ball and a girl will suck the other
by Hdjsjsjajskalaa April 3, 2018
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