Fuck it anyways!
From Create Your Own Story
You strip, and instruct the man to tie you to the mounting bench. "It's so I won't get scared and stop," you say. "Sometimes I get ready to do something, and I just run away at the last minute. I really want to get fucked by this horse, so don’t untie me until after he has cum inside me, OK? No matter what I say.”
“I don’t know," says the rancher. "I think that could be really dangerous. Cletus is not exactly gentle.”
“What are you, some kind of faggot?” you ask angrily. “Tie my whore ass to the fucking bench and let the horse rape me like I deserve!”
“Now just a --“
“Do it you old fuck! And if you untie me before he has come inside my pussy I’ll go to the police and tell them all about the little operation you have going here!”
“What the fuck?” says the rancher, “no little pre-teen slut is going to talk to me like that! Alright little missy, you’re gonna learn to be careful what you fucking wish for.
With that, he grabs you by the hair and throws you face down on the bench. Your pussy gushes with juice as he proceeds to roughly bind your hands and feet. You are now completely immobilized, bent over doggystyle with your naked ass and wet pussy spread and facing the clydesdale. You can tell he's ready, and he starts to trot over to mount you.