Nikki's breathing was heavy and shaken. She had just shoved a man up her ass and had an orgasm with him inside. Her conscience told her to take you out and return to class but the longer she sat on that toilet the less she wanted to leave. Her rear started to relax but with the occasional spasm. Inside her you noticed the surrounding walls weren't as suffocating and in desperation you made you move to escape. Bad choice. Nikki felt the tickling of your tiny limbs deep inside, pressing down on her inner flesh that was more sensitive than ever. Accordingly her asshole clamped onto you with hunger. It wanted more. Nikki's whole lower body bucked at once, craving for her to keep going. You needed to be go deeper. To that one place where should could feel amazing pleasure over and over. Nikki bit her lip and stopped thinking. She didn't need to choose if she would go back to class, her body had already made the decision for her.

Nikki went into her purse that she brought with her to the bathroom. Like an average teenage girl she brings her phone everywhere, and there's no way she'd leave it in her purse back in class. She checked the time. Good, plenty of time to get off a few more times before her next class. Then she caught a glimpse of something else in her purse. A devious smile ran across her lips.

Your world started turning and flipping. Nikki was moving and rustling around a lot. The walls started pushing at you, what could be going on? Just then a light appeared at your feet. Nikki was spreading open her asshole and digging a finger in. It made you scared just seeing it. You tried backing off a bit and her muscles coiled around you. The finger shot in further trying to grip your ankles, her intensely hot butt muscles keeping you locked in place. Finally when she had you good she started to pull you out. The difference in heat felt like you were suddenly thrust on top of a frozen mountain. You shivered in her hand.

You were dazed and finally adjusting to the bright light. Your vision cleared and you saw nothing but a pair of perfect sweaty naked breasts in front of you. That rambunctious movement you felt inside Nikki was her undressing. Your mouth gaped as you looked up and down. Much of her face was obscured by her hefty boobage, it cast a shadow over your tiny form. Her nipples were still stiff and glistening. Peeking down below you saw a beat-red pussy, still engorged and dripping for further satisfaction. Her entire body was coated in a sheen of delicious girl sweat. The fact that she had even undressed horrified you. It meant she wasn't done yet. In her other hand was the object she found in her purse. A small bottle of lubricant that was also part aphrodisiac. It was for those lonely Saturday nights where she was feeling extra frisky making love to her dildos. But today, you were her dildo. Nikki was excited, she had never tried this stuff with her ass before. She opened the bottle poured a good amount on her palm and slathered you in it. Once you were coated in it she turned around to face the toilet. Then she bent over.

Nikki brought her head low, near the toilet seat and wiggled her big butt in the air. This pose would get you in a lot deeper and feel even better for anal. She brought her hand with you back to her rear and you looked at the sexy sight. After all the torture you went through, there was still that instinct in your mind (or maybe it was the aphrodisiac) that was impressed with how perfect her plump butt was. Her hips were wide and her cheeks looked soft and fuckable. She groped one and gave you a glimpse of her tight asshole and wet slit. Then she slapped her ass and you watched it wobble and jiggle sexily. Her perfect ass curves rested and she started to bring you closer. Her massive buttcheeks spread and inside was her anus, contracting and pulsating. Your head was wormed between her cheeks until your face pushed against her cornhole. Suddenly she stopped. Her hand made small circular movements as your face was rubbed and pushed into all of her little wrinkles, slathering the anus with lube. It expanded and crushed your face still wiggling a bit with happiness. Then it breathed open as Nikki let out a hot fart right in your face. With that she thrust you forward into the smelly abyss, still hot from the recent gas and more wet than ever.

Back outside Nikki was wiggling her big butt back and forth reeling from the pleasure. The aphrodisiac took an immediate effect and her insides felt more sensitive than ever. Her anal muscles sprang up with new life and gross movement. The shithole contracted over and over trying to swallow you deeper. Nikki brought her fingers in, pushing you against her volatile flesh so it could taste you better. The hole clamped tight once more, suffocating you. It hadn't even been a minute after insertion and Nikki had already had a light orgasm. You weren't pulverized like last time, but now it felt like her blood was boiling. The lube had gotten her so aroused. She slipped two fingers from her other hand into her pussy to please it. They formed a hook shape and rubbed lotion on her special place, the g-spot. More contractions seized her and you were squeezed by her butt from all angles. This time however, you could feel her thick fingers jostling around in her pussy through the sticky walls of her bowels. Nikki scrubbed at the magic spot with abandon. Her eyes rolled back as she felt another orgasm coming. She felt your body on her pussy fingers and shoved her ass fingers in deeper to meet you. You didn't have time to react before your face was slammed into the gummy floor. The ass finger started scratching you into her hypersensitive flesh. The wiggling fingers deep in her cunt pressured you from the other side. They both manually squeezed at you from both angles, rubbing and raping your body. Nikki shuddered and arched her back. Then she let out a husky moan. Another orgasm came, as her nethers both exploded with euphoria. The dam in her pussy broke and she squirted hard onto the bathroom floor. You were even more cramped this time with the finger next to you. The rectum pulsated and lurched into you. Your face was being shoved into so much squishy woman-flesh that you started to choke on all the ass slime. Your coughing fit only aroused the sensitive flesh more and it began to suck on you. The tunnel of butt love was pulling you deeper.

She still wasn't done yet. She had to cum more. Her mind was pretty much gone and lost to lust at this point. She softly spoke out between her soft drooling lips, thick with sticky saliva.
"More... MORE!"

Hearing what she demanded made your eyes break open in fear. Her strong finger retreated behind you and her ass gaped a bit. The gooey bowels swelled into you. You were pulled deeper into her ass where the walls were more hot and puffy. The plumpness wrapped into you with a sexy embrace. Then two fingers came back plowing into your legs. They nudged your feet deeper and the rancid tissue helped tug you further inside. Nikki's anus gaped even further and a third hard object entered her booty. It was a small clear plastic nozzle and the rest of it was connected to a bottle. Nikki had lost her mind in heat and let the aphrodisiac lube seep into her ass. It started to mix with her ass paste around you and her walls started to rumble and stir. Her anus went into overdrive, flexing and contracting fast and hard. The puffy walls stretched and absorbed the new liquid so they could rape you more violently. Even though you were drowning it smelled so terrible. You actually wished you were just back in her panties smelling farts. That was bearable compared to this. As if a cruel joke was being played on you, a brand new gas bubble of hot steamy girl-fart exploded around your body. It hissed by your body and splattered your face with new dirty slime. The sudden relief of the fart took Nikki by surprise and she came a little. Inside more sweltering battering continued until Nikki decided to go for broke. She grabbed the bottle with her other hand a squeezed on it hard, spraying and spewing all the arousal lube as deep as she could. It was like a tidal wave hit you. You panicked as the liquid filled your surroundings and started thrashing around. Against your better judgement, you had to go deeper for more air. Nikki's anal tube came again with delight. The walls were sloshing with the surrounding lotion and your tumbling body. Nikki saw stars as she came, her blood rushing in reaction to the massive quantities of lube ingested by her even-more-massive ass. Her anus drank it all up and swallowed. Then she made her final bold move. Right as she was starting to come down from orgasm, Nikki thrust her fingers up the the knuckle, as deep as they could go. They collided with you and you were sent rocketing the furthest up her butt you've ever been. Then seemingly you hit a wall. Everything stopped and then quaked. You noticed you hit some kind of ridge or lump in her meaty body before you were given a fleshy hug into it. You pushed with both arms trying to get off but Nikki's hips bucked and you were flattened into it once more. She gasped and quivered with lust. Your body had been shoved so far up her ass it was hitting her uterus from the other side. And she loved it. You thrashed and pounded on it, desperate to be free from this snug farthole. Your fists roughly banged against her most sensitive spot and she came harder than ever before. Nikki's tongue shot out as her back arched again and her hips started fucking the air. Her pussy squirted everywhere as her fingers dug into her asshole, spreading it as it contracted. Her hot steamy bowels became a vice and crushed you into her uterus repeatedly. Her climax caused her to jiggle and spasm, until her hypersensitive bowels held you in place to an extended duration. Then with a few more pulses and shakes, she was done. Nikki feel to her knees, finally being anally satisfied.