I grew up on the farm in Canada. As a kid I only had my older brother around, he was two years older than me.

We had this dog, and my brother would take his sheath and rub it until his dick came out. Sometimes the dog would get up and start humping while my brother held his sheath. I liked his dick.

One afternoon we were in the barn with the dog and my brother was masturbating him and he told me to get down like a dog and he pulled the dog up on my back so he could hump me. At first he didn't do anything, he just tried to get off, but my brother kept pulling him up and poking his dick against my butt. Well he started to hump, I got nervous and pulled away.

My brother told me to get my pants off and he spread my legs apart and he got the dog up on me again and when he started to hump he put his dick against my slit and helped him get it in. At first, he was hesitant, and I kept pushing backwards, because by then I was hot and wanted his dick, my brother pushed his back down on me and this time he managed to get him to stick his dick in me.

He really started humping then and I put my arms around his front legs to pull him up to me and he pushed his dick all the way inside of me, he kept humping until he got his dick stuck and we laid on the floor because he wasn't pulling it out. I was stuck, and my brother just kept patting the dog and laughing at me, after a while the dog let go and all this stuff came out of me.

It was the one and only time that we let the dog fuck me, but we kept masturbating the dog and letting get up on me, but I didn't take off my pants. That dog had learned to hump on me and more than once he pushed me down on my knees and I had to let him hump.

It was all taboo and stuff, but the feeling of him humping on me felt good.