Margaret did not take long to recover from her orgasm. Giving her body a shake she sat up and shuffled forward, pulling our cocks from her cunt. I could feel drops of cum fall on my belly and chest as she moved on her knees up my body until she was straddling my head. Reaching to spread her cunt lips wide with two fingers she lowered her cunt to my mouth. "Lick me out, you dirty little shit!" she ordered, "Use your tongue! Clean me out!" My spunk, co-mingled with Stu's, was seeping freely from her cunt, and when I thrust my tongue deep into her channel a heavy load poured over my tongue, causing me to swallow hastily. The deluge of spunk quickly slowed to a trickle as I continued to tongue Margaret while she moved her cunt back and forth on my face. Two or three minutes later she raised herself from me and moved to one side. Beside us knelt Stu, his slimy-looking cock still swollen but hanging limp over his balls. He quickly moved to take his wife's place, dangling his cock over my lips. As I opened my mouth he lowered himself onto my face, his tight balls pressed to my chin as his warm, tangy-tasting cock filled my mouth. Still drooling spunk, his cock began to swell as he gently rose and fell over my face so that I could clean him off. Even as his cock swelled to full erection, filling my throat, I could feel my cock growing as I shared Stu's excitement.
Reaching back, Stu grasped my swelling cock, massaging it to hardness as my tongue and lips washed his shaft and balls. Suddenly Stu leapt, giving a gasp as I heard a slap on bare flesh. "Dirty little bastards!" I heard Margaret exclaim, "I told you two not to get carried away!" Stu gasped as I heard another slap. "Get off him, you little shit!" she spat. His cock jerked from my mouth as Stu hurriedly lifted from me, revealing Margaret standing over us, threatening us with her whip raised in one hand. As she loomed above us, my eyes were drawn to the large, realistically shaped dildo protruding from a fur cover harness strapped around her hips and thighs. She laughed mockingly as she followed my gaze. "That's right, Mr Big Dick, it's all for you! I bet you can't wait! Look, you're already hard with excitement."
Waggling her hips, Margaret jerked the rubber tool back and forth above me before reaching down and administering a stinging slap of the whip to the side of my thigh. "Over on your knees, you slut!" she ordered. I felt a wave of excitement, tinged with apprehension and humiliation wash over me, scrambling to obey as she raised the whip threateningly. "Get him ready, and be quick about it!" she told Stu. He moved behind me and I felt his breath gust hot in my crease as he tugged my cheeks apart. His tongue lapped wetly around my hole before his tip pushed against me, slowly worming deeper, before suddenly being replaced by a finger that worked deep into me, opening me up. The finger withdrew, and I felt something small, hard and cold pressed firmly against my anus followed by the sensation of cold wetness moving up into my rectum, and I realised that Stu was squeezing lubricant into my hole. The object was removed from my crease and Stu worked two fingers into me, twirling them back and forth as he pumped them in my hole, and as I began to open up he forced a third finger into me, initially stretching me painfully as it was some weeks since he last fucked me.
Just as the pain in my hole was easing and I was beginning to enjoy the sensation of Stu's fingers pumping in my hole he withdrew them. Wiping his fingers on my buttocks he announced to Margaret "He's ready, Mistress!" and moved to one side to make room for Margaret as she dropped to her knees behind me. I felt the hard column of her dildo press along the length of my butt crease, the mounds of her full breasts pressing on my back as she leant over me, reaching under me to grope for my cock. Finding me rampantly erect she chuckled throatily "Horny little slut aren't you? Just can't wait to be nasty Margaret's little bitch!" Giving my cock a painful wrench she straightened up, grasping my buttocks with both hands and tugging them wide apart. "Put it in him!" she ordered Stu, and I felt the tip of her dildo guided to the entrance of my hole. I willed myself to relax as she pressed forward and the blunt tip of her dummy tool was forced into me. The cold, hard silicone rubber dildo felt huge, bigger than anything I had taken before. The pressure on my protesting sphincter grew as more of the thickening shaft slowly slid into me, stretching me painfully. Fighting to keep from tensing against the pain I dropped my head onto one arm as tears involuntarily started from my eyes.
With a grunt Margaret drove the last inches of the dildo into me, drawing an involuntary yelp from me as my strained sphincter muscle was stretched as never before. She laughed mockingly "Can't take it eh?" she jeered. "Just because you can handle Stuey's little dong you think you're a real man!" Giving an extra thrust she twisted the dildo in my over-stretched hole, drawing another involuntary yelp from me. "You'll know you've been fucked by a real woman when I've finished with you, boy!" she sneered, beginning to partially withdraw the dildo before shoving it rudely back into me.
More accustomed to giving than receiving anal sex, I nonetheless have sufficient experience to know the differences in feeling of a dildo pumping in my hole as compared to a cock. Firstly, while both are similarly shaped and can distend a virgin or little-used anal sphincter painfully, a cock is made of gristle and flesh and will bend and give a little to accommodate the hole it is filling, while a dildo is unyielding. Secondly, a cock transmits sensations of pressure and angle of entry to the man behind it, allowing him, if he wishes, to adjust the speed, depth, and angle of his strokes to ensure his partner's pleasure. A dildo does not, but then Margaret was less interested in my pleasure than she was in establishing her dominance of me. The pain in my tortured hole was almost overwhelming as Margaret began to bugger me vigorously. Holding my breath, trying not to cry out in protest at the pain, I nonetheless became aware of a small yet growing thrill of excitement at being humiliated and treated as an object by the magnificent woman behind me who was intent on totally dominating me. Hissing her satisfaction, grunting with the occasional extra vigorous thrust or twist of her hips to screw the dildo even deeper into me, Margaret continued to berate me, adding to my peculiarly mixed feelings of humiliation, degradation, and excitement. Each time she screwed her hips hard against me, stretching my over-extended hole painfully, I could feel the hard, blunt tip of the dildo moving around deep inside me, a strange yet not unpleasant sensation. The pain in my hole was gradually fading, being replaced by the familiar sensation of burning friction. I became aware that Stu was lying on his side next to me, massaging my achingly erect cock. The moiling of the massive dildo in my hole seemed to go on for hours, yet it was probably no more than twenty or thirty minutes before Margaret slumped over me panting, her chest heaving, her large breasts flattened against my back. After several minutes she straightened and began to ease the dildo from my aching hole. As it slid from me I began to slump to the floor, earning a stinging slash across the buttocks. "No you don't, slut!" Margaret commanded, "Get back up on your hands and knees! I've plans for you! You're going to be Stuey's bitch now!"
Even as Margaret moved away from me Stu quickly took her place, rudely tugged my buttocks wide apart and with little finesse thrust deep into my throbbing hole. Shuffling around in front of me Margaret waggled the dildo beneath my nose. Catching the pungent scent of my bowels from it I looked at it, coated with a clear jelly-like film streaked with brown. "Suck my cock, slut!" she ordered. I looked at it again, and then lowered my head, shaking it in refusal, but she grabbed my hair, pulling my head back up and pushed the blunt tip of the reeking dildo to my lips. "Hold him!" she ordered Stu, and he reached under me to pull my hips back hard into his belly. With her other hand Margaret pinched my nostrils closed, and when I opened my mouth to breathe she forced the dildo inside, bruising my lips. The tangy taste and slimy sensation almost made me gag, but I was forced to concentrate on swallowing to overcome the gagging reflex as Margaret pushed the dildo into my throat, the wet and evil-smelling fur covering the harness pressing against my nose. "That's the boy, suck that cock, clean me off!" she crooned as she began to fuck my mouth with the dildo while Stu pumped his cock forcefully in my arse. Humiliated, debased, and with a cock at each end, albeit one a dummy prick, the novelty of my situation was increasingly exciting. Stu reached under me to grasp my cock, but my excitement was so extreme that at his touch my cock exploded in orgasm, spraying my spunk onto the towel beneath me. I was so wound up that I began to suck the dildo as enthusiastically as I would a real cock, slurping and mumbling out my pleasure.
Grabbing me and pulling me close into him, Stu thrust hard two or three times and then froze, jammed hard in me. I felt his cock twitch inside me and sensed a wash of warmth as he came deep inside me. Sliding her dildo from my mouth Margaret squatted back on her heels, the rubber tool, clean now, protruding obscenely from her crotch. Smiling her satisfaction, she asked almost sweetly "So did we enjoy being nasty Margaret's little slut? Did we like being fucked by her big cock, and sucking it clean?" Cringing with embarrassment, I felt a warm flush of humiliation and pleasure wash over me as I nodded agreement. "That'll teach you to keep Margaret waiting so long for her fun!" she went on, "Now what do we say to Margaret?" she continued, adding to my humiliation by speaking to me as if I were a child. "I'm sorry to have kept you waiting, Margaret." "Mistress!" she corrected me, tapping my shoulder with the whip. "And?" she queried. I thought for a minute. "Thank you." I muttered. "Thank you, what?" she demanded, slapping my flank with the whip. "Thank you Mistress!" I blurted. "Good boy," she cooed, "you are a quick learner! Now," she continued briskly, "when are you coming back to see Margaret again?" I thought for a moment "The same time next week?" "Good!" she responded, "We'll have to see what we can find for you next time."
Telling us we could use the shower in the main bathroom, Margaret disappeared into their bedroom to use the ensuite bathroom. Stu and I quickly showered in turn both beyond further action for the moment. I stumbled home, my cock bruised, and my arse bruised and aching, yet I was filled with an afterglow of excitement at my recent submission to Margaret, and my anticipation of what she might have in store for me when we next met.