m (jock strap)
The '''testicles''' (or '''testes''', common slang terms '''balls''', '''nuts''' or '''babymakers''') are the principal [[male]] organ of reproduction in mammals. They are part of the male [[genitals]]. Testicles vary in size, but all produce [[sperm]] that is capable of impregnating a [[female]] to create a new being. Males normally have two testicles covered by the [[scrotum]], which hangs behind the [[penis]] in a standing male, though rarely a male may be born with only one testicle (monorchism).
In certain [[spanking position]]s, the testicles and scrotum are presented with the [[naked]] [[buttocks]]. A skillful [[spanker]] knows how to play with the testicles without causing any medical injury. Testes that hang low sway in a pendulous manner and are easier to spank. Some [[spanking]] [[play]]ers prefer to shield the testicles with a [[thong]] or
== See also ==