This dog seemed eager to run to me, but the handler held him firmly while the door was closed and re-latched. There were a few minutes of unusual silence until the door in front of me opened once again. It had free reign. Surely that couldn’t be what I thought it was. I gasped as six inches of fat dog cock slid effortlessly past my sphincter and into my rectum. I could feel the pressure mounting, mounting, mounting – until my body could take no more. The horse was going to fuck me. What walked through the doorway was not a dog. It was light, but firm, against my sphincter. A handler gave the horse a quick pat on the rear, which triggered it all. Hyperventilating, I tried desperately to regain my breath. I could see the cock that had violated me swinging between his legs as the handler left the room with him. As the cock began to grow in girth, I tried to clench while the knot was outside of me.
