The doctor explained how the penis works.

The male reproductive organ in humans and many animals.
He felt pain in his penis.
The penis is part of the male anatomy.
Doctors study the penis for health reasons.
erect penis
flaccid penis
penis size
manhood
phallus
male organ
The doctor explained how the penis works.

The male reproductive organ in humans and many animals.
He felt pain in his penis.
The penis is part of the male anatomy.
Doctors study the penis for health reasons.
erect penis
flaccid penis
penis size
manhood
phallus
male organ