Scrotum
From wipipedia.org
The scrotum is part of the male's external genitals. Located between the penis and anus, the scrotum is a thin-walled, soft pouch of skin and muscle containing two compartments to hold the testicles.
Also known as: Nads, Nuts, Nutsack, Balls, Scrot, Family Jewels, etc ...
A major biological function of the scrotum is to control the temperature of the testicles at a slightly lower temperature than that of the rest of the body. It can be unsafe to allow the testicles to overheat, as this will kill or damage the sperm.
Many men enjoy having their nuts gently played with and masochists may enjoy pain inflicted through them.
