Fulfilled my fantasy

Few months after I turned 19, I had this fantasy of having a large dog mounting and fucking me. I didn't know how to do it, where can I find a dog that will mount me ? I had to make research online. I found many weirds things, some people I wouldn't met even to fulfil my fantasy.
I finally got it, I met an old couple online that were in this kind of stuff and they were willing to help me and they have a husky. We chatted about me, what I wanted and how I imagined it. My body needed to be prepared for it, it's not as with a man, the dog react differently. But it didn't put me off. The old man liked me and we decided to meet.
I went to their home to prepare my body to receive the dog. I mainly chatted with the man that was 72. He explained that it's not easy, it can be aggressive sex as the dog does not care, when he will fuck me, I am just his sex toy, he's making puppies 🙂 and his cock is about 11 inches. And it's going to be painful when I will have his knot inside my pussy.
So for a few days I went to their place, they have sex toys in the shape of dog's cock and the man trained my pussy. I get naked and go on my four lifting my ass then he inserted this toy inside my pussy, it was a nice sensation as he fucked my pussy with it for a long while, I deeply breathed and my pussy was wet dripping as I was loving it.
When my mood was right I told him he could fuck me if he wanted. I didn't need to repeat myself as he was already inside me fucking me. We kept doing it for a few days and after almost a hour of him fucking my pussy with the sex toy, I heard his belt buckle and the unzipping of his trousers then he fucked me. I don't mind because I asked and I was enjoying.
Then he told me that I am ready to fuck his dog.
I went back and meet the dog. He was young and full of energy. It looks he liked me straight away. It was like he knew I was there for him. The old couple said the same thing, the dog found me sexy and was eager to fuck me.
I took off my clothes and played with the dog, he ran all around me, sniffing every parts of my body. The old couple were watching me and i liked it too. It turned me on more. I went on my back on the floor, the dog was licking my face and my mouth, I opened my mouth wide and his tongue went inside. We kinda french kissed, our tongue were stroking together, I loved it.
I stimulated his cock, pressed the base, he became hard.
I sucked his cock slowly and sensually, my tongue swirled all around. I had little shot of cum around my mouth as dog keeps shooting cum when they are hard. I went on my back again and took the dog above me with his cock on my face. I sucked him again for long. I gave a glance to the old couple, they were still there watching. I loved it and I started to finger myself, it excited me more.
Then I went on my fours and the dog mounted me with his paws around my waist. He must have fucked women before, he knew what he was doing without any help. It's clear he was trained to fuck women. The dog was bigger than me and I felt his weight, I felt his cock inside my pussy then it went bigger, his knot was there then he pounded me furiously, it was intense and painful but the orgasm I had was like nothing I'd ever experienced before. I felt several spurt of cum when he was inside, it was warm too, also it was quite a lot. I have felt every spurts, every throbs send orgasmic electricity through my body head to toes, it was the most amazing orgasms I never had. He fucked me for around 45 minutes I screamed my head off from pleasure, I could tell the dog was enjoying fucking me, his jaw was on my neck I heard him grunting, he was loving it so much. I felt his cum inside me, it was so warm then he dismounted me. Once the pain went away I felt like I was in heaven. I was so sweaty, I can't remember how many times I orgasmed, but I was left a mess after he got out of me I had to have laid for a good 20 minutes or so before I could collect myself and remember where I even was.
The old couple was happy that the dog and I get along so well. I keep him at my place over weekends, we have a lot of sexual fun, keeping fucking from the morning to the evening with a few times in the night. I introduced the dog to my girlfriends while walking him in the park. He seemed to like them too. Maybe one day, we will have a party with him the only boy there.