>>513919942
When dogs cum they inflate their penis with a ball to prevent the sperm from spilling out and competition from calming the female.

The reason your penis looks like a mushroom is so you can scrape the sperm of your rivals out of a female and deposit your own. Dogs don't do this they simply literally glue themselves to the female and say fuck it.

Also as you can see animals are GAY as fuck. When the horny hits you a hole is a hole.