I'm sorry for starting another thread that seems so ignorant, but here it goes..... Although it has been proven that testicle size is not related to testosterone levels, semen volume or sperm count and doesn't effect erectile potency, I have noticed that every time my balls are big and full(my balls change sizes pretty dramatically), my erections and libido are much better. Before i get attacked by people telling me I'm an idiot, does anyone agree or know why this might be? I really think it has to do with testosterone levels or free testosterone levels even though studies have refuted this. I swear I'm not making this up, maybe my hormones fluctuate a lot. My balls seriously go from being the size of small eggs one week, to the size of grapes the next. And every time they are the smaller size my erections suck, and my flacid size isnt as full either.