I am a 30-year-old male who has was always into bestiality even though I'd never done it.
I like to drive around at night looking for places to chill and relax. One night while I was driving I park at a repair shop to relax a while I heard barking come from somewhere in the distance. I continued to relax there for a while after about a hours rest I had gotten tired of this dogs barking.
I drove in the direction of the dog's bark, down a dirt path that lead to a small grayish building. I drove around it but I couldn't see the back where the dog was barking.
Finally I drove around back and left my headlights as I got out of my car. I slowly went over to the barking dog and when I got within petting distance I slowly put my hand to it. The dog realized I was not going to hurt it, then I moved up next to this big dog (I am only 5'3) the dog probably weighed more than me.
I got down on my knees and started to rub the dog's belly and I found that he was an unfixed male. I quickly thought to myself, 'Wow is this the chance I had been waiting for?'
I return to my car to get my clothes undone when he tried to grab me but had gotten my jacket sleeve he finally let go though I did get a little jumpy I still went to my car to get undone.
I was finally undressed I was a little cold but with all my excitement I barely noticed. I took a little Vaseline and smeared it on my rectum hoping it would become a male dog's pussy tonight. I slowly walked up to him hoping he did not attack me or anything. I then walked up to the spot where my car headlights shined the most. I got on my knees and started to rub his belly.
I slowly rubbed lower and lower until I finally reached his male dog sex organ as soon as I grabbed his cock it poked out of his sheath. He then growled at me and I quickly let go of his cock. For a few minutes he paced around me every time I tried to move he growled and lunged towards me. So after sitting there for the few minutes he came up from my back and pushed into it with his nose. I then lost balance and was on my hands and knees he started sniffing my ass then he gave a nice lick that hit the hole and sent chills down my spine.
He continued to lick there for a while then he moved away a crawled a little to turn around to see what he was doing but as I crawled a little forward he jumped onto my back and started humping away trying to find his hole he poked around at my cheeks awhile hurting them with every thrust he made I lowered my upper body down in hope to give him more access.
Right after I lowered my self it happened first his head went in he then waited a little more then I felt his front legs tighten around my legs and waist then bam he lunged with all his might and got a few inches. I started screaming, "Oowww!" He just started humping fast and hard it hurt like hell he kept pushing up and up till I felt this ball hit that back of my newly formed dog pussy.
He then pushed with all his might while I was screaming for him to stop your not going to fit in me he then lifted his back legs off the ground and with that I felt a big plop up my hole, "Oowww, shit noooo!" He then pushed harder and harder the back part of his cock then came a little more out and then I felt a really painful swelling in me. "Owwww, fuck, its too big, owww!"
He was tying me to him I was now becoming his bitch he swelled to he could not even budge his cock inside his bitch then a warm gushy feeling started to hit my insides. He was cumming; he was filling me full of his puppy making juice. He kept going like he was determined to make his new bitch pregnant with his pups.
He stood on my back for about an hour while I jerked off 4 times, still locked together. Then finally his cock plops out of my ass followed by gallons of unused puppy cum.
Now I return there at least twice a week to see my lover.