My first orgasm

I was what you would consider a late bloomer. I never even touched myself until I was in college, even then it felt amazing but I had no idea what a climax truly feels like. One weekend my grandparents asked me to stay at their house while they were away for the weekend, with their dog benji. Benji was a smaller brown mutt and he was the horniest dog I’ve ever seen. He was constantly humping our legs or any blanket in sight. The first night I stayed there I was getting ready to shower, I left the door to the bathroom open since I was alone. I sat down to pee before I showered and benji walked in to see what I was up to. He walked up to my leg and I patted his head, then he did something that sent shivers through my whole body. He put his paws on the toilet seat and touched his cold black nose to my untouched pussy. He sniffed me for a moment and I didn’t dare move for the fear of losing his touch.. I wondered what would happen if I opened myself up to him. I got up and laid down on the tile floor with my legs spread. He sniffed up my legs until he found the heat between my legs. He paused for a moment then he started to lick me, feverishly. It was such a shock my pleasure was building quickly. It only took a moment and many licks from his rough tongue before I exploded, I screamed from the intense pleasure. I had never felt anything like this before and I wanted it again, and again. After I was finished he began to hump my leg, I let him go and reached behind and cupped his balls in my hand. He was the most well endowed dog I had ever met. He took a break and came and liked my nipples and my face, it was like he knew exactly how to pleasure a human woman. He gave me everything I needed that night and I was addicted to that feeling. Every night of my stay we played together and it never got old. Anytime my grandparents left town I was the first to volunteer to watch benji, and we played many times even after I had been with a man. Sometimes I still touch myself to the thought of him.