The second pic is nice. And beefy, large asshole that is easy to put your penis in, simply using a step ladder behind the horse's rear end, wetting the penis's head and horse's black anus, push 4 fingers deep into anus helping to loosen the muscles of the anus's opening, gently press the tip of your penis against the center of the anus, then enjoy feeling your penis pushing in slowly, feeling soft, comfortable poop and warm temp gases all over, causing you to nut off a messy discharge of your sperm inside the horse's dirty poophole. I want to spend an entire weekend smoking meth and fucking a couple horses up their poopholes, feeling nasty filth all over my penis while I pump away, watching the anus's opening hug and cling around, sliding up and down the length of my shaft, nutting hard, then after pulling out my member I would instantly plug in the other horse's poophole.

Nice dirty asshole