https://commons.wikimedia.org/wiki/File:Erection._Male_Reaction_to_a_Nude_Female.webm
A Male and a Female. Both nude. The Male reaction of seeing the Female body is an instant penile erection.
[Erect mammal penis]
https://commons.wikimedia.org/wiki/File:Erection._Male_Reaction_to_a_Nude_Female.webm
A Male and a Female. Both nude. The Male reaction of seeing the Female body is an instant penile erection.
[Erect mammal penis]
This is much hotter than it should be