I live on the outskirts of good size city in a nice three story townhouse. I'm a professional in my thirties who keeps in good shape. I'm a small girl, just 5' tall but I'm nicely rounded with breasts big for my size and a pronounced rounded ass. I workout on just about a daily basis and keep my body looking good. I turned my bottom floor 2 car garage into a little mini-gym and I spend a lot of time there after work and on the weekends.

Of course nowadays I spend a lot more time there getting a really different kind of workout. Having dated quite few guys and finding they were more interested in my tits than me I decided to blow off the dating thing for awhile and haven't sexed up a man in at least six months.

I have a good routine to get myself off involving some sophisticated toys, the friendly produce aisle, and my workout gear, so I'm not going without orgasms. I had never considered having sex with anything but a human but today I'm not sure I'll ever go back to them. Like most things in life, my dog loving began as a simple chain of chance events and since has become a big part of my life.

This is my story. It all began one evening while I was working out. My townhouse is on a cul-de-sac and backs up to a wooded area near a neighborhood and some farms. When I workout, I keep the big roll up door closed for privacy but I leave the back door wide open. The back is fenced to the woods and because of the curve no one can see in.

I have a weight bench, treadmill, stair machine and a heavy bag. Working out really turns me on and is all mixed in with my sex. Sometimes, after punching and kicking my heavy bag, I'll clinch it hard and grind my pussy and clit on it. Sometimes I tie my shirt up over my tits and rub my tits and nipples on the hard, rough canvas. When I'm through with the bag I've worked myself into a highly excited state and I head for the weight bench. I lay back and work the plastic covered ball end of a three pound dumbbell in and out of my pussy until I get good and wet.

I love the feeling of my pussy stretching and then closing around it. My bench has lots of attachments and I've added a couple of my own. I have two small bungee cords tied to the top with alligator clamps on the other end. They're the perfect length to clamp to my nipples and pull my c-cup tits up. It's not really painful, just strong enough to make my tits hot as hell.

I keep this up with my ass at the end of the bench, when I can fit the five pound dumbbell in my cunt I get it in and let it hang down over the edge of the bench. I clamp down with my pussy as gravity tries to pull it out and with my tits strung I get both hands free to work my clit until I nearly pass out from coming.

After I regain control, I drop the dumbbell out of my pussy, slide my loose little shorts back over my pussy, release my tits and pull my top back down. I slide back up the bench and slowly start my workout. This is where I found myself when something new slurped into my life.

I was lying on the bench covered in sweat with my pussy leaking all over my shorts and my nipples still burning. I picked up the bar and did a set of ten with fifty pounds, set the bar in the cradle let my arms and legs fall open and closed my eyes to rest for a moment. In a single instant I felt a hard breath on my clit and a big lick on my pulsing pussy.

I shot up ready to kick the ass of whoever was there. Then I saw the big mutt. He must have slipped in the back door while I was coming. I recognized him from around the complex, I think he lived with a family in the houses beyond the woods. He was nice enough, very big and strong muscled, kind of tan all over and with a friendly face.

He seemed to have a gentle personality and was really kind of scared at my aggressive action toward him. He had retreated to the back door but didn't run out it. I called him over and gave his big head a rub and a pat 'nice doggy' and then whooshed him away. Again he went back to the door, but not out. He didn't seem a threat to me so I laid back to continue my workout.

I was three reps into my second set with the weight on my chest when I felt it again, the tongue was back. It almost took my breath away and it did take my strength away. It took me a good ten seconds to get the bar back up to the cradle and by this time the dog had licked my shorts aside and was after my pussy in earnest. In my excited state I wasn't about to stop him, I just held onto the bar and slowly spread my legs. His tongue felt so good. As my legs came apart he could get at my ass and my clit.

He really began to work me over, he licked my thighs, my clit , my pussy, the hair on my mound, my ass and my ass cheeks. He was all over my sex. His big tongue snaked into my pussy, which swelled out to meet him and when he licked my ass I pushed so hard I thought I'd turn my asshole inside out. I was going to explode, his tongue was unbelievable and I could feel a long, massive come rising up in me. I couldn't control my sex or my bladder and I released a tense little spurt.

The mutt must have thought this was a sign of affection because he went after the top of my pussy like crazy. My clit couldn't take it and I shuddered into a complete body orgasm. I was shaking and gasping for air and my bladder lost complete control, I pissed right through my come. The dog never stopped licking. The piss and come ran down my ass crack and he followed it.

Finally this huge orgasm began to subside enough for me to get a hold of what just happened. My sex felt almost numb, I could still feel him licking gently at my ass and my thighs. I had dropped my legs and could feel his big body between them as he twisted to get better access to my now not so spread pussy. The fur on sides felt good and it occurred to me that I had just let a dog lick me to the best orgasm of my life.

I wasn't disgusted or bothered at all, the good feeling washing over me felt too good, and after all who's the dog gonna tell. I sat up a bit to see him, his face was covered in my come and piss but otherwise he looked clean and well cared for.

I reached down for his head to scratch his ears, it was the least I could do for the best come of my life to that point. As I reached for him, he came up on me, knocking me back to the bench. It took me by complete surprise and now he was standing with his big paws pressing into my tits. His huge head was right above me. I felt something hit my thigh and was able to look down and see a dick as big as my forearm hanging from his belly. It was hard and waving around between my legs. He was doing his best to get it in me.

I wasn't sure I wanted to do this, it was all a little fast. Having a dog lick your pussy is one thing, having him fuck you with a huge dick was quite another. I reached up to try and get his fore legs off my tits and just as I was ready to make my move his dick hit the bench and he humped forward. His aim couldn't have been more true. In one thrust he was into me six inches. It took my breath away.

Too late to stop now I figured, it beat the dumbbells. The dogs' dick felt hot and very hard and it was moving in and out of me fast. I was too far up the bench for him to get much more into me so I started to push down the bench and spread my legs at the same time. As I did this he hammered his huge dick into the bottom of my pussy. I came immediately, squeezing the shit out of his dick. I felt pressure on my pussy and could see the knot on his dick as he pulled out and could feel it as he pushed in.

I know about dogs tying when they mate but figured I had to have it anyway. It was only about as big as my five pound dumbbell so I knew I could take it. I scooted down a bit more and pulled his front legs to my sides, his chest came down on mine and he was able to grab my body. When I felt the knot this time I opened my pussy to let him get it in.

It went about halfway in and then out. My pussy relaxed and soon he was humping the knot in and out me. God it felt so good, my pussy would oval out and close behind it. I came again, hard. As my come eased off I could feel that the knot wasn't going in and out anymore, it was all in me and it had swelled up much larger than my ten pound dumbbell. He was still humping me like mad, holding onto my ribs with my tits being scraped and rubbed by his fore legs. My head was at his neck. I reached up and wrapped my hands around his neck, spread my legs wide and just let him have me.

He was working his dick in me. When he pulled back the knot couldn't release but it would pull on my pussy and cunt lips from the inside and it felt incredibly good. When he thrust forward it felt like the tip of his dick was snaking into my cervix. He just kept on going, pounding and squirming around in me. I had at least two more strong orgasms, I felt like a fucking beast and began to fuck him back like one.

Finally he slowed down and would just twitch his butt from side to side causing his huge dick to twitch in my deep in my pussy. Then I felt him really grip my body and push hard into me and his dick released a gush of his come into me. It was hot and shot into my pussy like a fire hose, filling me up fast. I grabbed his neck, humped my pussy up onto his coming prick and came for five minutes, jerking and shaking and squeezing him with my pussy. He kept humping and coming in me. Finally it was over, or at least I thought it was.

He was slumped over me not moving at all and I was weak from coming. We lay there for a moment just letting it sink in. He finally moved a bit and his dick moved in my pussy, then I could feel it. His knot was huge, it had swollen to the size of a softball and it was firmly planted in my pussy. He began to get a little fidgety and soon he scrambled his front legs back onto my chest again, standing on my tits. Remembering how dogs fuck I realized he wanted to get down. I pulled my legs together as much as I could and eased up into a crunch. I helped him turn to my right and he got a paw on my leg and started to turn away from me.

The inside of my pussy went crazy. It was being twisted around this huge cock and ball as the dog turned to face away from me. He hit the floor and stood there facing the wall, his cock buried deep and hard in my pussy and still twitching little spurts of come into me. I rested a minute and felt down my body. My tits were sore from his paws and the weight on them, I rubbed them back to a happy state and reached down for my sex.

My cheer shorts were still on, just pulled to the side. I felt the dogs back and his strong haunches and the felt for my pussy. My lips were stretched over his dick and my lips were bulging out from the pressure of his knot. It felt so good. As I ran my hands down my belly I felt the bulge of his knot just above my pussy. I found my clit and decided to make the best of it, I worked it hard, coming massively at least three more times with the dog stuck to me.

As I lay back exhausted I could feel his dick starting to soften and soon he gave a pull and it plopped out of my now well fucked cunt. His come poured out of me, all over the bench and puddled on the floor. He turned and gave my pussy one or two quick licks which felt like an electric shock.

I twitched and snapped my legs together, I needed a break from coming. The dog went over by the door lay down and proceeded to lick his dick clean with long slow strokes of his tongue. Finally his dick shrunk almost all the way back into its sheath. He hopped up, came over to me, licked my thigh, turned and just trotted out the door. I lay there on the bench, a thoroughly fucked mess.

My eyes rolled up to the clock on the wall and I realized I'd been fucking the dog for almost 30 minutes including the tie and it was the best fuck I had ever had. I gathered myself up for a long, hot shower. As I closed the back door I looked at the woods and heard dogs barking, lots of dogs barking, not mean barking, more like happy howling. I hoped the big mutt would come back some day, I wanted to fuck him again, and be prepared this time. Little did I know what was in store for me.

I had to go out of town for the next two days on business and I couldn't get the dog incident out of my head. Every time I thought about it my pussy would flower out and juice my panties. I went through six pair in two days. I was in a constant state of mild arousal the whole time and I was planning the whole time. The first part of my plan was not to shower for three days and with all my little mini-comes my pussy was getting really rich, I figured the dog would like it. I also wanted to try him from behind, I wanted to be fucked like a dog bitch.

I got back late at night on the second day from my trip and just crashed and went to work the next day. Day three with no shower. I couldn't wait to get home. My tits were scraped up from his paws the last time so I went through my old workout stuff and found a sturdy lycra body suit. I cut off the bottom at the top of my ass and I pulled the material out in front of each tit and cut a circle.

I was able to pull my tits through the holes and the tightness made them round out nicely. My nipples had been hard all week but this made them rigid. I had a plan to get the dog to lick my tits and hopefully my little dog sex body suit would help him hold onto me better and keep me from getting scratched up. I scrambled into my special top, put a half tee over it and some cheer shorts and headed for my garage to 'workout'. I did 45 minutes on the treadmill and stair machine and worked up a big sweat. I skipped the heavy bag and headed for my bench. I laid back and slowly did a full set, keeping my eyes on the back door the whole time. Nothing.

I did another set. Nothing.

I hung around the garage for an hour, nothing.

I had to do something so I broke out my dumbbells and nipple clips and went to work on my clit. I came hard at least twice fantasizing about the dog and added to the rich mess in my pussy. Still no mutt. I went to the door and looked into the woods. If I knew his name I would called him, but I figured he wouldn't come to 'big mutt' or 'fuck dog' so I locked up, anxious to give it another try the next day.

I didn't shower again that night but knew I could get away with one more day before people would start smelling me from a distance. I had two days of travel, a hard sweaty workout, and seven comes in four days on me. The next day I moussed it up and headed for work. All I could think about was the dog and how he had fucked me into oblivion. The day couldn't go fast enough.

I got home and immediately headed for the gym in my special little dog fuck suit. I was tingling all over. I did my same bit on the treadmill, stair machine and weight bench and still no mutt. I was beginning to get a little pissed off. I had never even made these kind of plans to fuck a man and I was feeling stood up by damn dog.

Rather than masturbate, I decided to let loose on the heavy bag. I punched and kicked it like a mad woman. Pretty soon all my prissiness left me and I started getting turned on. I yanked off my half tee and started grinding my tits and pussy against the bag. I was beating the bag with my bulged up titties when I glanced over at the back door and who should I see, the big mutt, and he had a friend with him.