Her pussy felt like a velvety fist wrapped around my shatteringly hard prick; my abodmen, bulging slightly even as I reclined below her, felt stuffed and still crampy, although her massage of its girth had caused the cramps to abate, only to be replaced by an unending wave of peristaltic action. Were it not for the double inflatable nozzle sealing my bottom, my shit would have splattered forcefully all over the exam table to run onto the bathroom floor.

Mistress Satana's head was thrown back in ecstasy as she endured her first orgasm of our coupling. Recovering, she ordered, "You will not come until I allow you to--is that clear?"

"Yes, Mistress Satana." I hiccuped and retched convulsively as a sudden cramp shot through me. "Sweet Mistress?" I inquired.

"Yes, unworthy worm?"

"How much time is left before I can release this load?"

She glanced back at the digital display on the timer. "Ten minutes," she replied brightly, adding, "then however long it takes for me to drain the additional three quarts of glycerine solution into you and have you hold that for ten minutes." She snickered at my sudden gasping intake of breath, simultaneously opening the clamp to begin releasing the caustic second helping of fluid hell into my already distended middle. Rocking up and down with her hips, she continued fucking my aching dick with her tight vaginal sheath, her passion mounting as little gasps escaped her lips. As we began to pant in unison, I was convinced that this time she'd let me complete my journey to ecstasy, until she regarded me with a wicked grin and stopped moving. Observing me sadistically, she licked her full ruby lips and asked, "You'd really like to come now, wouldn't you?"

"Oh yes, sweet Mistress Satana, I'd do anything if you'd let me come." I whimpered in unsated arousal and desperate need, at the same time gasping as the irritating glycerine solution set up a continuous shockwave of cramps that made my bowels feel as if they would burst immanently. "It hurts so bad," I croaked. "My belly is going to explode before I can even get to the toilet." Tears sprang from my eyes as I felt her begin to slide her slick womanhood slowly over my straining erection once again.

"How do you feel now?" she inquired, her voice dripping honey that still held a thinly-disguised venom behind it. "If I let you come when I close the clamp, will you obey me and hold this gallon and a half of delicious medicine for the prescribed ten minutes?" She rocked her pelvis against mine as she directed this last command in a stern voice.

"Yes, Sweet Mistress," I gasped, my penis aching for ejaculatory release even more than my hugely inflated belly yearned for the comfort of expelling the burning load inside my crampy colon.

"Very well then," she began, rocking her vagina up and down over my stone-hard manhood, her own breathing coming in little gasps as she rode close to the edge of her own ecstasy. Her abdomen, rounded in her fourth month of pregnancy, expanded and contracted with her breathing, and a sheen of sweat glistened over her neck, chest, breasts, belly, and inner thighs as she rode me to fulfillment. Her body shaking convulsively, she screamed, "Now!!!"

I grabbed her full, round buttocks and pushed forcefully into her sweet cunt as the liquid fire boiled from my testes, through my spermatic ducts and vas deferens and out through the head of my swollen penis, drenching her interior with my male essence for what seemed like a solid five minutes before I slumped exhaustedly against the table. I barely heard the click of the clamp as I fought wave after wave of cramps in my hugely expanded paunch, which looked as if I was at least six months pregnant.

"So goooodddd!!" she hissed, her rocking pelvis bouncing up and down on my still-spurting dick, swollen breasts and distended belly red with the grandma of all sex flushes. Her vaginal contractions milked me dry, then at last she relaxed as my penis began to detumesce, a huge fart erupting from her relaxed bottom to set the air reeking. Easing herself up off my pelvis, she repositioned herself with her wide, soft white fanny pointed at my face. "Now you can pay homage to my magnificent buttocks with your tongue, dog," she uttered in a menacing purr. I drenched her full moons with my tongue, then began rimming her, finally zeroing in on the dark asterisk of her anal passage. The entrance to her bowels was spicy and bitter, reminding me that she was probably constipated as usual (which seemed to be a constant up through this stage of her pregnancy), and I knew that she expected me to loosen her shincter enough to allow her to defecate naturally when I finished my osculum infame. Swearing my allegiance to her infernal majesty, I picked up the pace of my tongue action, wincing at times when she cut loose with even more pungent bursts of flatulence. Although the smell exacerbated my nausea from the brutal load in my middle, my dick was again stirring to obdurate erection. I gasped as she shuddered intermittently, her body wracked with anal orgasms from my phallic oral muscle. Her big round ass smashed down hard against my face as she bucked in her most intense climax of the session, and my nose felt bruised from the impact. Finally, she settled her full weight on my face, my nose lodged deep in her beautiful asshole as noisy, convulsive farts continued to issue from her rear.

A beeping sound indicated that our time had run out. She lifted herself slowly off my face and eased herself to her feet, then took my hand to lead me to the toilet. Positioning me so that my fanny was aimed over the opening, she carefully deflated the outer balloon to the inflatable nozzle, gripping it in her left hand while her right turned the valve to deflate the inner bladder. The device slipped from my sore asshole as an unending torrent of my waste began to explode from my bottom, settling heavily onto the seat as my cramps returned with intensified force. I belched nauseously, certain that I was going to puke, my eyes filled with tears, pleading with her stern gaze to do something to ease my agony.

Finally, she relented and began running a warm, damp washcloth over my forehead and face with her right hand, her left hand going to massage my slowly deflating gut. I belched incessantly as the cramps continued until the farting, sputtering, and splashing from my tormented rear ceased, then she bathed the sweat off my chest and stomach with the washcloth. "I think a warm rinse of your innards is in order, dog," she announced imperiously. "Back on the table!"