I knew my Master had something special planned. Something out of the ordinary. Something I had never experienced before. And it was all for me. To show me humility and obedience. To remind me I am his, totally.

There was to be a party at the house that night and my Master was working on the details more closely then normal. It was to have a theme, "A Walk In The Park". Most of his parties tend to have themes with me playing a role of some kind. One was "Money Doesn't Grow On Trees". That one was interesting, I was the tree. Guests were invited to pin money on my body with clothes pens.

Another night I was the entryway cash box. Master had small balls about the size of marbles with strings attached and paperclips at the other end. He tied my elbows to my knees so I was in a crouched position and placed me by the front door. Every one who came was to put their admission fee in the clip, then press the ball end into my cunt or ass. By the time the party was in full swing I was so full of balls! I felt wonderful having all those people touch me and finger me.

Tonight I was to be His dog out for a walk in the park. He instructed me to wear a studded collar with a leash and since I was to be on my knees all night, a set of knee pads. I was thankful for them in just a short time. My hair was in two ponytails high on my head to resemble doggie ears.

As the guests started to arrive, most had the same dog idea as my Master, the subs all on their knees and eye level with me, the Masters and Mistresses holding the leashes. It was a totally bizarre sight. Through the night, many male dogs sniffed the female dogs, all at the Dom/mes' bidding. A lucky few were even allowed to mount the bitch of their Master/Mistress choice. It was all in good fun, and only a few "dogs" had to be disciplined.

At one point, near the end of the evening, my Master tied my leash up to a post and left me, ordering me to be a good puppy and he would give me a treat. Almost panting with anticipation, I waited for His return. But when he came back, he wasn't alone. He had a dog, not a human dog, but a real dog. I think it was a Great Dane, but I was too stunned to notice for sure. As He walked nearer and neared to me the dog seemed to get bigger and bigger. I was scooting backward as far as I could until the leash stopped me. A quick glance up at my Master confirmed my worst fear, the dog was for me!

"On your hands and knees bitch dog, let Brute sniff your snatch". I know better then to ignore a command from my Master, but...

"NOW!" he shouted and pulled my leash up tight, raising my head and pulling me around to present my sex to the dog. The dog, Brute, sniffed at my cunt a few times then took a tentative swipe with his tongue.

"Ohhhhhhh", I gasped as the thick rough tongue made contact with my sex, one lick wetting me from clit to rosebud. And to my shame, I was wet. So wet the dog started licking my sex eagerly, spreading my pussy lips and delving into my hot hole. His tongue was so big it nearly filled my cunt! I was on all fours quivering as the dog licked me with more enthusiasm them most humans I know. And everyone at the party was watching, totally absorbed by the scene before them. Except for the slurping of the dog and my own moaning, you could hear a pin drop.

I chanced a look back at my Master, and was shocked to see him reaching under the dog, massaging his cock. Or rather his sheath I later learned. Easing his long thin dog cock out more and more. The dog was growling with animal lust and eagerness, I think I was too. I looked at the rapt faces of all those around me and knew I was going to be fucked by a dog for their pleasure. I wanted to protest, to beg my Master not to do this, but something deep inside wanted this, to give my Master this last part of myself, my last shred of humility.

I arched my back, giving the dog all the room he needed to lick me to a mighty cum, but before I could cross over the line and sink into glorious body shaking ecstasy, Master pulled the dog away. We both whimpered and strained to resume the contact, but Master held tight and slipped socks over the dog's paws, protecting me even as he was about to give me to an animal.

Then without any warning he patted my rump and Brute jumped onto my back, his front paws grabbing and hugging, his hips already pumping though not hitting the mark. I closed my eyes as I felt Master reach under me and guide the dog cock into my cunt. I could imagine the sight, me on the floor in front of a roomful of people, a dog on my back with its cock in my cunt! I was near to cumming just at the thought!

Brute started humping at a blazing speed, each thrust taking him deeper. His cock was not that thick so I was not stretched, but it was long. I panted along with him and went along for the ride, but I couldn't say much for the actual fucking. Until...

I felt something large pressing against my pussy lips, spreading them with each thrust, trying to force its way into my cunt. I jerked forward and away, and earned a swat on the ass for my effort!

"Do you feel his knot bumping at your cunt? Just relax and let him in, all of him." my Master commanded with a leer. I knew something big was coming, but not exactly how big!

I took some deep breaths and relaxed my pussy muscles, slowly the knot forced its way into me. It seemed so huge compared with his thin cock. And it was all the way inside of me, stretching my cunt and pussy lips with each frantic stroke. Then with a mighty howl, Brute pressed forward as far as he could, burying his cock and knot in my cunt, and the most amazing thing happened! The knot swelled up at least three times the original size!

As the hot dog cum filled my cunt Brute pressed harder and harder, the knot holding him in tight. It swelled so big it pressed my clit out and my pussy lips swelled. I had never felt so full of anything in my life! I was panting as hard as Brute was, sweat dripping off my nipples to the floor. Master reached under us and slowly stroked my throbbing clit and I shattered into a million pieces, screaming and howling like the bitch dog I am!

It never ended. Just when I though my cum was subsiding, a simple touch had me howling again. I was shaking so bad I nearly collapsed, but Master held me up and kept me cumming. And cumming! And Cumming!!!!!

At one point, Brute jumped off my back and turned around, oh the feeling of the huge knot turning is not to be believed! Ass to ass, his tail teased my rosebud and started a whole new set of spasms. When Brute tried to pull out the pleasure/pain was indescribable! Master held Brute steady so as not to harm me. Eventually, after what seemed like hours but was only 15 minutes or so, the swelling went down enough for Brute to pull free. I immediately collapsed on the floor and a puddle of cum, mine and Brute's. Applause swirled around me as I lay moaning and panting, just like a bitch in heat.

I think I passes out because the next thing I remember was Master carrying my up the stairs to my bathroom and helping me to clean up a little, then putting me to bed. That was the first time I had sex with a dog, but not the last. Brute now lives with us and often joins in our play. I never imagined I could give myself so totally to anyone to have sex with a dog for them. But I have given myself to my Master in just that way. I would to anything for Him. Anything.