I waited quietly on the bed, my nervousness evident by the irregularity of my breathing. I tried to peek beneath the blindfold covering my eyes, but all I could see were two small slivers of light and my own cheekbones.

The door groaned as David swung it open and then pushed it closed again. I heard a dog's rapid panting and surmised that David had let his Doberman, Goliath, into the room. Goliath was a beautiful dog with an almost all-black coat, shiny and smooth. He had tan patches on his muzzle and around his eyes, and his underbelly was tan with a small hint of white. He was a large dog, weighing almost 110 pounds, but unlike the biblical Goliath, he was a gentle giant.

It was unusual for Goliath to be present during our sex. David often enjoyed spanking me with his hand or sometimes a leather strap, and on the one occasion when Goliath was present, it was obvious that this confused him. Goliath had known me for a long time and was protective toward me, and he had whined as David's hand descended on my bare bottom. Out of concern for Goliath's feelings and David's lack of appreciation for a duet of Goliath's whimpers and my moans, Goliath was banned from the bedroom during sex.

I remained silent, biting down on my tongue to keep the obvious question from escaping. "Spread your legs, Christy," David instructed. I was sitting on the corner of the bed, my legs dangling over the edge. I spread them wide, displaying my shorn pink pussy with the gold labial rings. "Now be still, no matter what happens. Do you understand?" I nodded. "Just relax and enjoy yourself."

Again I nodded. "Yes Sir." I heard Goliath's collar jingle as David led him over to me. I felt his warm fur against my leg. "Oh God," I wondered silently. "Is David really going to do what I think he is?"

This question was answered when a warm wet tongue slid itself between the folds of my vagina. It was tentative at first, then increased its efforts as it tasted the sweet reward of its caresses. It manipulated some of the rings, causing a gentle tugging of my labia, which I found arousing. My pussy began to respond to Goliath's ministrations. I was moaning and bouncing on the bed as his incredibly long tongue found its way into my canal. It felt strange but very enjoyable, and I was soon spreading my legs as wide as possible so that he would have full access. After three or four minutes of his eager tongue, I experienced the tingling sensation in my clit that proceeded every orgasm. But then he pulled his velvet tongue from my hole and pushed his cold nose deeper into my crotch as he began licking my anus. I wriggled at the unfamiliar feeling, then gasped as the tip delved into the puckered opening. David lifted Goliath's muzzle and directed him back to my clit, which was very erect and delighted in Goliath's renewed attentions. "Oh!" I gasped. "I'm going to cum David! Oh God!"

"Goliath, sit," David commanded, and Goliath instantly obeyed.

"Oh please David!" I cried out in frustration. David removed the blindfold and looked into my golden-green eyes, which easily adjusted to the soft candlelight in the room.

"Poor Goliath is doing all the work," he said. "Don't you think he deserves something in return?" I shook my head no.

"I can't do it, David. Don't ask me to do that." My relationship with David was much deeper than boyfriend/girlfriend. I was his submissive, and he was my owner. We even had a contract (legally unenforceable, but it was the spirit of the thing that counted), and the contract gave David permission to use my body however he desired: whenever, wherever, and with whomever. Whether whomever included the dog was up to his discretion.

"I'm not going to ask you, Christy," David replied, after a moment of silence. "I'm ordering you." Part of me hated when he made me do things I really didn't want to do, and part of me loved it. I really found the idea of going any further with Goliath to be revolting, yet I wanted to please David. Doing something for him - something I did not want to do - was a greater testament to my obedience and devotion than doing something I did want to do. It was kind of like the 7th grade, when I told my mom I was giving up liver for lent. I hated liver, and there was no sacrifice involved and therefore it was meaningless. She told me that to prove my devotion and faith, I had to give up something meaningful, like chocolate or television. For the rest of the world, David wasn't really on par with Jesus, but he was a god to me and I lived by his commandments.

"Yes Sir," I said softly.

"Thank you, pet," he said, stroking my cheek. He gathered my long, dark brown hair into a ponytail and secured it at the nape of my neck. "I want to see all of it," he said. "Can't have your hair getting in the way." He kissed my neck and nibbled it as his right hand caressed my full round breast, tweaking the hard brown nipple. Then he leaned back and patted the mattress. "Come Goliath!" Goliath eagerly jumped onto the king-sized bed. "Lie down," David instructed. Goliath and I both reclined on the bed and David laughed. "Not you Christy!"

"Oh," I said meekly and sat up again.

"Find his cock," was David's next request. Taking my small pale hand, I reached between Goliath's haunches and found the furry sheath that encased his penis. A red cone was poking out, moist with evidence of his earlier arousal. I felt a twinge between my own legs as I recalled the way he had licked my bare cunt. My other hand flew down to my little nub, but a sharp slap of the hand from David reminded me of my assigned task. I continued stroking Goliath's sheath with my fingers. Goliath whined a little when I touched his testicles, so I decided to leave them alone. He rolled onto his back with his legs hanging loosely to the sides. His canine member was growing, and soon several inches of his red meat were exposed.

David's hand softly pushed my head down until my lips were touching Goliath's hard cock. I touched it gingerly with my tongue, at first licking only the red tip, then sliding it down his vein-covered shaft. I could taste the seminal fluid dribbling out of his pee hole as I licked him. The taste was salty and tangy but not unbearable, and I decided to take the plunge: I engulfed as much of his shaft as possible with my mouth. As I slid my mouth down around his cock, my tongue licked his warm penile flesh. I sucked him gently, unsure whether a dog's penis was more or less sensitive than a man's. David held my head by the base of my ponytail and assisted me in moving my head up and down on Goliath's burgeoning erection. The dog was making soft growls in his throat and began thrusting into my mouth. David was fingering my cunt, and the smell of sex was getting strong. I felt my hole being stretched as he filled me with three, then four, fingers. Saliva was dripping from Goliath's long pink tongue, and his nose was sniffing my scent.

"Do it for me, Christy," David said. "Do it, you dog-sucking slut!" David's own cock stood at attention, and I longed to feel it inside me, but that wasn't what he wanted. Obediently, I knelt on all fours. David patted my back and summoned Goliath. "Up!" Goliath needed no more incentive. He knew he was about to take a bitch in heat. He scrambled onto all fours, then wrapped his forepaws around my middle as he tried to enter me with his hungry cock. With a little guidance from David, Goliath's seven-inch cock found its target. He plunged it into me, and it bumped my cervix, which made me cry out in delight.

"Fuck me, Goliath!" I entreated the dog. "Fuck me hard!" Goliath fully intended to fuck me, no matter what I said to him. David helped me maintain my balance as Goliath penetrated me enthusiastically. He was on his haunches, fucking me hard and fast. As David pulled on my swollen nipples, twisting them in his fingers, I orgasmed. A low wail tore from my throat as the climax went on and on for at least a minute. I had never been multi-orgasmic, but when Goliath pushed the knot in toward the end of my climax, plugging my tight snatch, I immediately had another. My cunt was throbbing, and I could feel my muscles squeezing his orange-sized knot. Goliath evidently could feel it, too, and with a growl, he deposited a hot load of dog semen into my quivering pussy. "Oh wow! He's cumming!" I said. The words had barely left my mouth when white ropes of cum spurted from David's own cock onto my upturned face and my pendulous breasts. This incited me to another orgasm, which left my entire body weak and trembling.

Quickly David moved behind me and held Goliath so that he could not turn until the knot went down. After what seemed like several minutes, Goliath pulled from my hole. A combination of his sticky cum and my own dribbled from my hole onto the sheets. It was gooey and nasty, but I complacently lapped it up at David's request.

David had fulfilled his long-standing desire to see a woman and a dog copulate. I had pleased my master and enjoyed a few good orgasms in the process, and Goliath had done what came natural - fucked me like an animal.

I fell back onto the bed, exhausted. David looked at me with a mischievous grin. "So when do you think he'll be ready to do it again?" he asked. As an answer, I socked him with a pillow, which to my delight earned me an over-the-knee spanking.