Why Human Penises Lost Their Spines - Leopard penis

56.55% | 482 votes

Many mammalian species have developed keratinized penile spines along the glans and/or shaft, which may be involved in sexual selection. These spines. For all species of the cat family, mating is painful.​ It's not the biting that hurts the female, it's the male's penis, which is barbed with tiny hooks.

Categories: Fallout 4


By Tem - 16:33
Leopard females don't produce unused eggs like humans do, as this would In order to stimulate female ovulation, the males penis is barbed.
By Kell - 03:17
Penile spines, which are still present in several modern animals, are usually small barbs of keratin—a type of hard tissue—that line the outside.
By Morg - 14:42
The penis of the leopard slug is so big that its owner has to rely on the laws of physics to unfurl it.

Related Videos

Penis skin tearing
7454 131 21:13 HD
Free young boobs
2280 197 18:29 HD
Trenton flyers pee wee b
7048 191 10:09 HD
Blackmail sister fuck
7098 330 23:24 HD
Penis barb
6902 334 05:58 HD
Boob bitches
3958 15 11:25 HD
Xxx the hunted 4
653 454 10:57 HD
Gay moustche
1634 412 21:03 HD
Porn in korea
8524 477 18:37 HD