dirty sanchezのようなどんな単語でも探してください。
 
1.
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!
Thatballsexguyによって 2009年08月29日(土)
 
2.
1. a male inserting his testicles into a vagina, anus, or other orifice commonly used for sexual stimulation

2. similar to tit-fucking, wrapping the testicles around the shaft of your partner's penis, or your own, and simulating sex.
My genital herpes were acting up last night, so my girl and I had ball sex instead.
HankMoody( *)(* )によって 2012年02月12日(日)