Misaka's Experiment #3 (Pixiv Fanbox)

Bethany pushed deeply...slowly...into the bound girl’s slit with the large strapon dildo, all while looking deep into Kaori’s eyes. Part of her was doing it because she wanted to get revenge on Kaori for gangbanging her sister in the sauna with Brutus months ago. But another part of her was doing it because she loved being in control like this. Normally it was the dogs or Gregor who got to do the penetrating (or Erin). But this time it was her doing the fucking.

She moved it back and forth steadily under the watchful eye of the doctor, bringing her hands up to the top part of the chair so that she could get better leverage and thrust even deeper. The cream penetrated deep inside Kaori as the strapon stimulated Bethany equally, pushing them deeper into the throes of ecstasy. Soon the air in the clinic was thick with the sounds of wet, sloppy sex as Kaori’s juices mixed with the cream and started running down her ass crack. Bethany had become a full fledged sex demon at this point. She kept her hands steady on the chair and brutally fucked the ten year old, all while staring balefully into her eyes. Bethany was close. She could feel it. Kaori was too...but Bethany didn’t care about that. The hot young nurse was on tilt, jamming the dildo up Kaori’s cunt in order to stimulate the other end inside her. “Ahhhhh” Bethany moaned as she bottomed out inside Kaori, “I’m close...I’m gonna cummmm!!!!”

Suddenly a smack across the face brought the nurse back to reality. “NURSE BETHANY. YOU ARE SUPPOSED TO BE ADMINISTERING THE MEDICAL CREAM. NOT SEXUALLY STIMULATING HER!” The doctor was furious. “Apparently the training you’ve received was not enough. I will have to give you additional training it seems.” With that, she pushed Bethany forward so she was leaning against Kaori but also exposing her tight butt...and equally tight anus. Dr. Yamanako bent slightly to get at the right height and without ceremony or warning...rammed her on red strapon deep inside the nurse’s anus. Bethany’s eyes bulged and she yelped in surprise. The thrust was powerful enough to knock her forward even more, thus pushing Bethany’s strapon even deeper inside the still-restrained Kaori.

It was a three girl fuck train.

The doctor began jackhammering her hips into her assistant, letting the shockwave travel through Bethany and into Kaori. Bethany squeezed her eyes shut as the strapon in her ass and the one in her pussy stimulated every cell in her body. She felt as if her whole body was about to orgasm. “You see Nurse Bethany, this is how you administer vaginal or anal creams. Steady but powerful thrusts.” Dr. Yamanko whispered in Bethany’s ear. “Now, my strapon doesn’t have any medication but it is filled to the limit with a special lube that’s also a powerful aphrodisiac. It causes earth shattering orgasms…” The doctor grinned as Bethany shivered in pleasure, the consequence of being the middle participant in this little sex session. The nurse rammed it deeply into Kaori again, trying to keep in rhythm with the dildo already thumping her ass. She was starting to get close...her loins bubbled and heated in anticipation as the thrusting from everyone began to speed up.

“Ahhh Doctor Yamanako...please….please teach me more!” she moaned as she closed her eyes and tensed up, about to hit the precipice of her orgasm.

The doctor grinned. She reached around and massaged her nurse’s breasts while sticking another finger deep in the nurse’s mouth. It was a favorite thing of hers to do. Fucking someone in the ass...while dominating her mouth. She had been doing it to her daughter Kaori for years. “Yes, this nurse was new, but she would do quite nicely.” the doctor thought. Perhaps she could even teach her her own dominating ways. She did wear the glam makeup quite well, after all. But first...Dr. Yamanako wanted her to cum.

She began pumping harder, feeling the lube/aphrodisiac seep out of the dildo and coat the inner walls of Bethany’s anus. By now Bethany was a hot mess, mindlessly fucking the bound Kaori while simultaneously getting it from behind by the doctor. Dr. Yamanako could tell she was close...and with one final thrust she buried the dildo deep into the nurse’s colon, squirting out its contents into her anal cavity. This caused a cascading effect, as when Bethany felt herself fill with the contents of the toy buried in her ass, she immediately orgasmed as well. With a large shudder and loud moan, her pussy clenched in orgasmic bliss and caused her own strapon to shoot the rest of the creamy medication deep into the gagged Kaori, who moaned loudly and orgasmed herself. And, as the five minute timer had long since elapsed, the dildo gag squirted out its contents deep down her throat, filling her with load after load of semen.

Exhausted, the girls leaned on each other as the dildos pulsed their last few bits into the bulging receptacles. Bethany had never experienced sex like that before...and neither had Kaori. Being fucked by someone who was simultaneously being penetrated by her mom was not something she had anticipated.

But...I guess that's just another normal day at The Facility.

__________________________

I hope you all enjoyed this short picture, long story series!