Tube Size ?

[lmsmfi]

What's the largest tube one can pump just your balls into?

[neonpumper]

Doing just balls is really difficult and in my 25 years of pumping I’ve never really seen it done overly successfully. Why do you want to do just balls?

[lmsmfi]

I have been pumpn my cock on and off for a few years, just moved to balls. Yep, would like to just pump my balls only to see if i can. I just put together an 8-inch globe and I'm pumpn both balls and cock in that for the first time right now. What a trip that is. My cock is really hard at 5hg and its touchn the side of the globe. I can't get it to go straight so it doesn't touch, but guessing that's just how I'm built, upward when hard.