You must need to understand the anatomy of what you are working with your testicles. are you know that testicles are pretty much free inside the scrotal sac, but the testicles aren't held up by the scrotum. Testicles are supported by what I'll call "suspenders" from the inner side of the pubic bone. This is a unique tissue that acts a little like a ligament. The scrotal sac itself also reacts to temperature. There's also the plumbing. Blood vessels and the passages that carry sperm to the seminal vesicle and located by the prostrate.
