Everything you ever wanted to know about stretching your balls but were afraid (or bemused) to ask: www.secretleather.com/jarod.johansen/
If you already enhanced your penis, dont leave its companions out! lol
When the testis naturally hang further away from the body, it helps to keep them cool by providing a superior ambient temperature for the production of sperm. While running/exercising or during cold weather, they retract to keep them safe from impact as does the dartos in the penis. Ingenious design.