Best day of my life

I was doing yard work for this lady I used to go over there every day. One day I was taking care of her year when her brothers dog came over. He lived with her mom who was being taken care of by home nurses. The dog’s name was bishop a hyge beautiful male dog of course nurtured. The lady told me that he is a sweetheart. The dog came to me and I definitely knew that I would love to have bishop mount me and have his way. Every now and then I would have to give bishop a bath and the lady was out of town so I knew that this was going to be my change to get him to have some fun. When he was all dry and clean I was getting hard thinking about his cock. I dropped my shorts and took him to a hidden spot so no one could see us. Well let me tell you something bishop was a pro cause the next thing I knew he was on top of me trying to put is cock in my ass. The minute his cock hit my ass I was in pain and I didn’t care after a little bit of pain it was exciting. He had his paws around my waist and he was just going into town with my ass and it felt so good that I was even getting hard the only thing that sucked was that he was nurtured and I couldn’t get his knot which I really wanted but I let him fuck me time after time when the lady wasn’t home. Bishop was a black lab/bulldog his upper chest was huge and from that point on I knew I still want a dog to knot me so I can see how it feels