Thanks for your question. Many people wonder about the size of their penis, testicles, and scrotum. It’s great that you’re happy with your penis size, and this suggests that your hormones are normal. If both your testicles are located in your scrotum (the sac that holds your testicles) this means your scrotum is a healthy size. Scrotums can range in size from person to person, just like hands. There is no safe way to stretch your scrotum.