It all started out a few years ago when I got back from an amusement part with my family. We had three dogs, two girls and one boy. When me, my sister and my mother got home one day my dad had brought home this dog. He was adorable, at 8 months he was already 60lbs so he was going to be a big dog. It was my fathers dog and he didn't want to have him fixed because he wanted him to be able to "get laid" as my dad said it. I started spending lots of time with our new dog, we named him Rusty. He was a great dog, trained very easily.

 I had been into masturbation for several years now, started about age 13 and thought it was wonderful. I even stole a massager that was bug shaped and vibrated from my mom so I could use it on myself. It gave me great orgasms. Now 16, about 150, 5ft 10'-long blonde/brown hair, green eyes, big D breasts, I notice one day that rusty liked to steal my dirty underwear and I didn't know why. It was getting kind of obnoxious because all he did was take them and rip holes in them and I started running out of underwear. One day I was getting ready to go out for lunch with my mom, i'd just gotten out of the shower and rusty was in my room watching me get dressed. I squated down to pet him and he immediately started to sniff my crotch. I was kind of startled by this but let him sniff some more. I then made sure my door was closed and sat on the floor with rusty and let him get really close. His sniffing was getting me wet and it really turned me on. He then started to lick at the folds of my pussy. Oh wow did that feel good. I let him lick a few more times before I was blown away by an earth shattering orgasm. It drove me insane, I made sure not to moan though because I knew my mother would hear me. I then got up, got dressed and before I left I noticed rusty's throbbing hard red cock was hanging, all 8 or so inches of it, out of its sheath. My mom noticed to and said "Your father doesn't know it but he's got an appt to get fixed in about 2 weeks" With that in mind I thought, I should let him lick me some more and maybe even fuck me. His tongue was wonderful I dont know how his cock would feel but i'd love to see.

A few days later my mom and dad went out to dinner and I was stuck at home doing homework. They were planning on being back around 11 so I had plenty of time to have rusty lick my pussy. Just thinking about it, him licking my wet pussy, soaked my panties. I went to my room and called rusty in. I sat down and petted him a few times, then I saw his cock peeking out a little bit. I decided to touch it and rub it eventually it started to get really hard. This got me even more moist. I took my pants off and let him sniff away at my wet panties. I moved them to the side and let him lick away. God it felt so good. I decided to lay down and spread my legs. His tongue got really deep, i could feel it. Then he decided to lick my ass, his rough tongue felt so good. He went from my ass back to my pussy, licking it feverishly. He started licking away, burrying his head into my pussy, getting really rough with each lick, a little bit of nibbling which was kind of shocking but soon I went into another gutt wrenching orgasm, nobody was home so I could scream "OOOH GOD YES, fuck me with your tongue, oh yes, harder" it was starting to hurt as I came, it kind of burned but I didn't care it felt so good.

After about a 20 min break I noticed rusty was licking himself, my parents still weren't going to be home for a few hours so I thought about letting him fuck me. His cock was out and he was having a good old time licking himself. I got down on all fours and got closer to him, crawling towards him, I started to rub his cock, he jumped a little and got really excited. I licked it a little, tasted kind of strange, so I sucked on it a little more. Some precum came out and it tasted really good so I sucked it some more. He started to fuck my face so I stopped, and turned around, he licked my ass some more then I think he got the picture. He jumped up on my back and wrapped his arms around me. I could feel his cock stabbing away at my pussy, he kept missing but eventually hit his target. "HOLY SHIT, OOOH GOD" it hurt like hell at first, his cock was very thick and long. It hurt for a while but then his steaming hot thick cock felt so good. He was thrusting away, deeper and faster, then i started to feel like I was being stretched, then I remembered his knot. It really hurt for a little while then the pain turned to pleasure. I screamed "OOOH YES, FUCK ME" as I had the biggest orgasm of my life. It was ridiculous how wonderful his cock felt inside me. He blew his load in me, his cum was really hot and i could feel it inside me and dripping out of my cunt. It felt so good, he howled as he came. It was the most amazing feeling i had ever felt. It was wonderful. His cock came out of me with a weird popping noise as well as a lot of extra doggie cum. My pussy was battered and bruised but it was a great feeling.

Rusty had gone downstairs as my front door opened, my parents were home early. I was half naked on the floor, I ran to the bathroom and started the bathtub, and jumped in. My mom knocked on the door "Hey honey, we finished dinner early so we could spend time with you, are you already getting ready for bed?" and I said "oh yea mom, i'm really tired, i just finished watching a movie w/ rusty cuddling me and i'm beat" so my mom smiled, wished me sweet dreams and I hoped to have some great dreams about what just happened with rusty. Hoping to let him fuck me again before my mom gets him fixed, maybe I should tell dad..