acromagaly, Yeah I gained about an inch in girth but its temporary. Once I got off they went back to the same size. You can also get temporary expansion by pumping your balls. Its not just the sack, the balls get bigger as well. I actually wish mine were smaller lol, but the only way to do that is to abuse steroids without HCG, but I don't want to lose my natural testosterone production so I'm out of luck