by deftonepiper July 31, 2008
Ballpumping forces fluids into different tissues at different rates. The testicles enlarge faster than the sac, just as the core of the cock enlarges faster than the skin. So if you pump a short session, you'll get big eggs hanging in your sac. If you go for a real long session, you'll get a big bloated "grapefruit" sac.
by deftonepiper August 31, 2008
by deftonepiper September 15, 2008