The man below her laughed again in obscene desire. "Don't worry. Buck is trained well. He won't harm you – as long as you do as he wants!"
The giant German Shepherd lowered his head to the helpless woman's smoothly upturned buttocks and sniffed them appreciatively. His tail wagged and trembled as though he had truly found a bitch in heat. Miriam moaned in terror as the cold nose suddenly made contact with her tiny, puckered anus. She tensed as his tongue snaked out and licked wetly up and down, the tip curling and licking around the hair-fringed softness where Roger's penis was inserted and then moving wetly up to the burrow slightly in her outer fleshy anal ring. For a moment she tried to squirm away, but the dog growled again and Roger's hands grasped her tightly around the waist, impaling her immobile upon his rigidly thrusting cock.
"That's it, Buck," Roger urged excitedly. "Now lick her! Go on, lick the little bitch's pussy slit and asshole!"
The dog began to greedily lap his narrow pink tongue between her thighs. He ran his tongue wetly the full length of it, from the tight-filled pink edges of her cunt up to the tiny, sensitive little circle of her tightly puckered anus. His great tongue spread through the soft, hair-covered valley like a knife through soft butter, curling and flicking relentlessly between Miriam's wide-spread buttocks. She jerked spasmodically as she squirmed under the Shepherd's lapping and sniffing of her loins, shuddering and chilling from the lewdly evil stimulation he was forcing her to enjoy. He worked like the savage beast he was, and his rutting lust was slowly driving her mad, his merciless tongue lashing her to servile defeat. The huge tongue was crushing her resistance with its vigorous and unrelenting attack upon her sensitively responding genitals for interminable minutes.
Miriam's body became lost in the fire of the moment. Every muscle in her body was tensed as she strained her hips back against that maddening probe between her buttocks. Oh God, the dog's tongue felt good back between her legs! She had never expected it could be like this, that an animal could bring such feelings from her body. Her love for Roger and his son incited her further. Her updrawn thighs opened and closed around the tormenting cock that was still fucking gluttonously up into her flame-seared vaginal hole. The lips of her mouth clasped tighter as she sucked with all her might around the excitedly sliding young prick of Mark before her.
"Mmmmmm! Mmmmmm!" she moaned, splaying her legs wider and higher to give the magnificent dog greater access. "Mmmmm!"
Then she heard his master's voice command: "Fuck her Buck, fuck her!"
The huge German Shepherd leaped to obey. He mounted the spread mounds of Miriam's buttocks, paws on her back. His glistening, scarlet penis slipped wetly from its furry sheath, its tapered point sliding and dancing in her hot, wet anal crevice as the animal trembled and jerked over her naked body. The narrowly expanded crevice was visibly throbbing in lurid invitation; the wet moist furrow held wide apart by the pressure of her thighs pressed tightly down against Roger's hips. Miriam could feel the hugeness of the dog's fleshy hardness jerking between her wide-spread ass cheeks, insinuating itself up and down, up and down, in a maddening search for some hungry hole in which to thrust the heavily throbbing point of his animal cock. But where? Where could Buck fuck her? Roger was already in her cunt…
"Reach back around and put his cock in your ass," Roger commanded suddenly. "Go on, reach back and put it in your asshole!"
God, no! Not there! Not in her rectum! To be sodomized by a giant German Shepherd! That would be the ultimate of degrading perversion! But strangely, the tiny bit of whore in every woman broke forth into a tingle of masochistic excitement. She suddenly had to have it in her! Her belly was screaming for it!
She took her hand from young Mark's testicles and reached down underneath the grinding flesh of their bodies to grasp the full length of the dog's heavily pulsating cock. Her tightly closed fist stroked it softly in reverence. She could feel the spasmodic throbbing against her palm and the moistly seeping liquid of excitement trickled from the blood-inflated tip. She guided it up the valley of her buttocks, not letting it lose contact with her flesh until it was poised at the pinkish round hole of her puckered little anus. She held it there with her one hand drawing with all her strength to pull it into her rectum. God yes! She wanted the dog to fuck her in the ass!
"Yes, Buck, fuck me there," she mumbled through her cock stretched lips as the beast thrust his giant penis in an urgent probe against her for several seconds, trying to lodge itself into the tight, straining anal hole.
And then Buck did.
With a growl of bestial delight, he jerked forward and she felt a slight pop at her anus – and then a sudden pain so unbearable that she twisted and groaned, trying with all her strength to get away. She no longer felt human as the huge dog-cock slithered far up into her rectum, pushing against the bottom of her belly inside. She jerked back up at him, trying to throw him off, but as she jerked up, the dog rammed down and imbedded his thick, rock-hard penis all the way to the hilt in the soft flaccid tunnel of her anus.
"Ugggg, God!" she grunted in pain.
The triumphantly smiling Roger Trenton leaned his head up off the carpet, his emotions still mixed, and hissed near her ear! "Like being fucked in the ass by a dog, honey?"
And that made it a million times worse, to know that her every reaction was being watched and enjoyed by another man and a fourteen year old boy. His words and victorious smile was mockery and insult to her, droning on until some of the pain in Miriam's rectum from the giant dog's entry began to ease a little.
But then, "Uggggg!" she grunted as the dog began fucking into her in a frantic humping rhythm. His giant animal cock seemed like an unrelenting fist pummeling into her mercilessly, expanding with each thrust down into her tightly gripping rectum. Miriam could feel the monstrous animal cock racing brutally into her raw, torn backsides, and she strained back against the grinding assault, groaning incessantly as the pain slowly subsided. A masochistic pleasure slowly replaced the searing firebrands of pain that raced from her totally filled anus to the rim of her own still dutifully sucking mouth. Her rising sensations of overwhelming lust were fed by the very helplessness of her lewd squirmings beneath the rapacious dog. The German Shepherd fucked inhumanly into her hopelessly impaled rectum, giving her no respite from the growing pleasure building – building – deep in her belly.
It was alive in her! The hard rubbery tip pressing up against her stomach lining inside, the thin folds of flesh between its length and that of Roger's cunt-imbedded cock, the tickling hairs of the dog's testicles brushing in the crevice of her buttocks… they were all part of her! She was one with them… and in spite of her pain, her tongue involuntarily began sucking even more hungrily at the youthful hardness between her lips. Her nostrils flared again, drawing in the delicious pungent scent of the excited boy's genitals deep into her body, and it mingled there in a strange erotic marriage with the feelings of the two throbbing cocks lodged deep in her soft white backsides. They all seemed to roll together into one great fiery ball of aching hunger for more. Her cunt contracted around the older man's penis as the lascivious sensations raced through her flesh.
Miriam's body felt itself coming to life now. The pain had receded to where she could only feel a maddening electric fire that burned uncontrollably deep within her backsides. It seared relentlessly through the raw nerve ends of her flesh, licking through her cunt and anus and dancing across the milky white flesh of her widely splayed buttocks, spreading up through her greedily contracting belly and out to the tips of her pink palpitating nipples, which peaked into hard tiny buds. Thin rivulets of sweat rolled down the sides of her full pulsating breasts, which were sensitive to even the brushes across Roger Trenton's heaving chest.