πŸ“š adventures in cum science Part 3 of 2
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Adventures in Cum Science

Adventures in Cum Science

by Tur_balboa
19 min read
4.65 (6800 views)
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Chapter 3

Will sat nervously in the doctor's waiting room. The UCLA medical center was a vast labyrinth of medical offices and teaching labs and it had taken him twenty minutes to locate the sexual health department. Now he was waiting in a small room adjacent to Dr's Phan's office. It was Sunday and the campus was mostly empty, which was fortunate for Will, as he had a massive and seemingly permanent erection with no way to get rid of it.

Will was a graduate student in the biology department. Two days ago he had been sort-of-accidentally dosed with an experimental drug that had caused this condition. His penis had grown at least an inch in length during that time and was thicker then he remembered. The problem was his erection would not go away after he had an orgasm. Now, his dick would ejaculate a colossal volume of semen, and remain rock hard afterwards.

As Will sat and reflected on the past 48 hours he could not help but hope there would be a way to live with his new condition. The two classmates who dosed him, Ashley and Priya, had tried to 'cure' his erection by sucking and fucking his dick dry in the TA's office. They eventually succeeded, with Will ejaculated a massive load into Ashley's tight pink pussy after she had orgasmed all over his cock. The next day Will had gone to Priya's house for more 'help' and ended up in a four way fuck fest, with Priya, her roommate Hannah and her boyfriend Marshall. Will was finally able to get release the second time he came inside the curvy Hannah, double teaming her while Marshall fucked her mouth.

After that escapade Priya had confessed this matter to her professor in the sexual health department and made this appointment for Will to seek help. So here he was, sitting in a waiting room with another rock hard erection in his pants, waiting to see where his cock would lead him next.

The interior door opened and Will was surprised to see Ashley, his perky blonde classmate, leaving Dr. Phan's office. They hadn't spoken to her since they had fucked like rabbits on her desk in the TA's office. Their eyes met and she gasped. Will noticed her cheeks were flushed and her hair was slightly damp. Ashley waved awkwardly at Will as she left the waiting room.

"Sorry again Will, and... good luck?"

"What?"

Will watched her bubble butt disappear out the door without an explanation.

Moments later the door opened again and Will was greeted by a tall woman in scrubs. She had olive skin and curly brown hair pulled back into a pony tail. The blue scrubs could not conceal her curvy body. Her breasts were at least D cups and she had a wide round ass to match.

Will realized she had said something while he was eye fucking her.

"Will?"

"Yes that's me." He stammered.

"Hi, I'm nurse Rachel". She gazed at him with her dark eyelashes, her plump lips pursed slightly as she looked at the clipboard she was holding. "Thank you for coming in. Follow me please."

Will followed the nurse down a short hallway and through a side door. He was expecting a sterile examining room but he found himself in what looked like a hotel suite. There was a complicated looking examining table next to several cabinets, but there was also king sized bed, a sofa and a flat screen tv. An inner door led to a bathroom and a rather large shower. Will also noticed a giant mirror on the other side of the bed.

"Please fully disrobe and put this gown on. Doctor Phan will be with you in a moment." Nurse Rachel handed him a paper gown and left. Will got naked. He couldn't help stare at his throbbing cock in the giant mirror. He expected someone was watching him behind it. The number of people who've seen his cock was increasing rapidly. He waggled his dick back and forth for his own amusement, if not theirs, before he put the gown back on. It made an obvious paper tent over his throbbing cock.

The door opened and Dr. Phan entered, followed by Nurse Rachel. The doctor was a slim asian woman in her early forties. She wore glasses and her black hair was pulled back in a bun. Her skin was a light brown and she looked poised and confident in her lab coat, skirt, stockings and a cream colored blouse.

"Hello Will." I'm Dr Phan. Thank you for coming in today. She was a foot shorter than he was but she shook his hand firmly.

"You're welcome." Will shrugged. "I'm really hoping you can fix what's wrong with me."

"Well for starters we can fix your perspective." She said, her eyes traveled up and down Will's body and lingered at the tent in his gown. "Please take a seat." She gestured to the table and Will hopped onto it.

The nurse handed the doctor a small laptop and the doctor set it up on her lap and started typing away as she spoke.

"We see a wide range of human sexual activity here. I know you've had a strong reaction to the medication you were given but I'm not ready to determine if there's something wrong with you yet."

"Okay but like, I can't live like this. I have a job, I have class Monday."

"I understand. We're going to get you taken care off. I need to start by reviewing the events of the last two days. I've interviewed Ashley and Priya extensively, but I need your perspective to. So... Let's start with your erection from last Friday.

Will lead Dr. Phan through the sexcapades of his last 48 hours. Dr. Phan and Nurse Rachel listened attentively. Dr Phan was typing everything Will said into her laptop, pausing Will at time to ask clarification questions. Her calm authoritative voice belied the debauched actions Will described.

"And if I understand it, your last ejaculation was during vaginal intercourse with Female #3, and was this before or after she herself achieved orgasm?

"After."

"And was that before or after Male #2 ejaculated into her mouth."

"Before I think, but just barely."

"Got it. And did she orally ingest Male number two's ejaculate?"

"A little bit, but it mostly got all over her body."

"Got it."

Eventually Will brought the story up to the present. The memory of Hannah cumming on his cock while Priya fingered her clit had his dick throbbing under his gown.

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"Thank you for the details Will." Dr. Phan said. Now were's just going to do a basic check up to get your vitals. Dr Phan and Nurse Rachel took Will through the steps of a typical check up, they weighed him, took his blood pressure, and examined him.

"I wasn't expecting this kind of set up." Will remarked as Dr. Phan looked in his ears with a otoscope.

"What do you mean?" She asked.

"It's like a hotel."

"We do some cutting edge research in the field of human sexuality here Will." She leaned into to shine a light in Will's eyes and he caught the scent of her perfume. "And one thing we've discovered is that nobody likes intercourse on a cold linoleum floor."

"What?"

"So far all you vital signs look perfectly normal. Now, I'm going to have to check your prostate. So, I need to to stand up, bend over this table and I'm going to insert my finger into your anus, okay?"

"Uh, okay."

Will stood as Dr Phan opened a small tub of petroleum jelly and dipped her index finger into it. He turned away from her and bent over the table as he was told. She parted his gown and he and felt cool air on his ass.

"Have you ever been anally penetrated before Will?" He looked up to see Nurse Rachel leaning over the other side of the exam table smirking at him.

"uh. no." He stammered.

"A lot of men find it very pleasurable." She stated. "It's best to relax." Will could smell her scent too he realized.

"You're going to feel a little push, just try to relax." Doctor Phan said and Will felt her finger press on his anus, he tensed up, then relaxed and felt her finger slide into him. He grunted a little at the slight discomfort. Then her finger pressed against something hard inside him and Will gasped.

"That's your prostate Will." Dr. Phan remarked, all business in her voice as her finger wiggled slightly inside of Will's ass. "It's large, but within the normal range for someone of your age and size." She spoke as she fingered him.

Will was breathing hard, he felt his face flush. His dick was twitching inside his gown, he felt like he might cum right there.

"Doctor our patient looks like he might ejaculate."

"Oh!" Dr. Phan slid her finger out of Will. "We don't want that yet"

Will he felt the void of her finger for a brief moment as his ass closed again, the intense sensation subsided and he exhaled.

"Let's get our patient on the monitors and then we can collect the first sample." Dr. Phan suggested and Nurse Rachel went to a small cabinet, pulled out a tray and slide it onto an arm next to the exam table. Will saw a what appeared to be a large beaker with a plastic flap at one end, a set of wireless sensors, and a bottle of personal lubricant, a rather large bottle. Nurse Rachel started pulling the sensors off their paper padding and attaching them to Will's temples, then his wrists. She pulled his gown down from his neck and attached a set of sensors to his chest as well. Then the nurse held up what appeared to be a thick silicon rubber band.

"Okay now this final sensor goes around the base of your penis." She smiled as she held it up. "So I'm going to lift up your gown..." She did and both the doctor and nurse got their first look at Will's large hard cock. Nurse Rachel smiled at the sight but the Doctor just looked over the top of her glasses and nodded approvingly.

"Oh good it looks like you shaved yourself so we can skip that part." The nurse remarked as she took hold of Will's dick, gently bur firmly, and slid the rubber band over the head and down to the base. It felt a little odd at first but he soon got used to it.

"Alright Will." Said Dr. Phan. We are going to leave the room now and when you feel comfortable we want to you masturbate to climax." She handed him the large beaker thing and showed him how the rubber flap at one end could be opened, she inserted her finger into it and wiggled it for him. "This is our... well it has a technical name but we just call it a cum catcher. It's pretty simple, when you feel you are about to ejaculate place the tip over the top of your penis and try not to spill any. This one is custom for you."

"Some patients like to use them to masturbate, try it out if you want" Nurse Rachel said as she positioned the television monitor so Will could see it and turned it on." She picked up a remote, her wide ass stretching her scrubs. In a moment a menu popped on the screen. "Do you want to watch an adult movie while you jerk off for us Will?" She purred.

"Uh sure" Will stammered.

"What do you like?" She started scrolling through options. "You want some girl on girl stuff?" Will saw she had scrolled to a custom menu section with a lot of strange file names. "If you're good I'll let you see one of my videos."

"You know anything is fine really... how about that one called uh POV Threesome Fun."

"Sure. Here you go." She started the video. On the screen Will could see a beautiful black woman reclining on a bed, completely naked and looking into the camera, her legs spread to show her pussy lips.

Dr. Phan stood up. "Alright Will I trust you know what to do. We'll be in the next room monitoring, but we're mostly looking at computer screens so, just act like you're in the privacy of your own bedroom."

Nurse Rachel placed her hand on Will's thigh." Don't worry, it gets more fun as we progress." She breathed at him. Her soft eyes surrounded by her flowing curly hair.

On the television the black woman had been joined by a blond girl who knelt in front of her and started licking her pussy.

The doctor and nurse left Will with his cock and his porno. He watched the ebony skinned woman close her eyes and moan, the blonde now had two fingers inserted in her pussy and was thrusting into her rhythmically as she tongued her clit. The camera panned over until it was directly behind the blond. She had a nice round ass and Will could see her pussy lips peaking out from under her ass. He started stroking his cock lightly. The cameraman's dick appeared at the bottom of the screen and he started lining it up to fuck the blonde woman. Will added some lube to his hand and increased his pace.

It didn't take long. Will had been waiting for release all day. Before the performers could even change position Will could feel the cum building up in his body. He kept stroking as long as he could, once he felt himself go over the edge he grabbed the cum catcher and shoved it over the tip of his dick.

It was a little cold but it didn't matter. Will's cock exploded and seemed to disappear inside the beaker as the clear walls were coated with his cum. He came and came into to device, feeling it fill up with his seamen. Finally his ejaculations subsided and he pulled the thing off his dick and looked at it. It looked nearly full.

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The door opened before Will could cover himself up again. Dr. Phan breezed into the room with a smile.

"Very good Will, let's see." She took the cum catcher from him and held it up to look at. "That is an exceptionally large sample. Which is consistent with your report." She went to the cabinet and retrieved some things, including another cum catcher. "How does your penis feel? Is your erection subsiding or not?"

"It isn't, I can tell when I'm about to have a big one that actually ends the... situation."

"Again, this is consistent with your report, which is good! We like consistent data here in the science world." She smiled again. "So we need you to repeat the masturbation procedure as many times as you are able, taking a sample with the cum catcher each time. Alright?"

"I'll do what I can." Said Will. And he did. Dr. Phan left the room and Will successfully jacked off two more times. He watched the performers fuck in multiple positions. Each time the doctor would replace his cum catcher and encourage him to continue.

Will noted his seamen samples never seemed to decrease in size. He ditched the gown entirely and applied more lube each time. Dr Phan entered again and Will noted she had removed her lab coat and was just wearing a cream colored blouse. Her eyes roamed over Will's now naked body and she gave him his forth cum catcher of the day and left.

Will still hadn't cum by the time the movie ended. The women were in the sixty nine position licking each other while the male cameraman fucked the blonde, who was on the bottom. He groaned and pulled out and the ebony woman grabbed the dick and pointed at her open mouth. She grinned at the camera as he spurted his cum onto her tongue. Then she wrapped her lips around the tip and milked him into her mouth. The cameraman groaned in satisfaction, Will groaned in frustration.

The door opened. This time it was Nurse Rachel. Will sat on the exam table with his hard cock in his hand, covered in lube. Something had changed about her shape, and Will released she had removed her bra from under her scrubs. Her giant breasts were hanging free and Will could see her firm nipples protruding from under the blue fabric.

"Hey Will, how are we doing?" She smiled?

"Uh... you tell me? I'm not sure if I'm um...."

"Doing it right?" She laughed and her tits jiggled under her scrubs. "You are, we're getting lots of good data. Are you getting thirsty at all?"

Will realized he was actually very thirsty and the nurse got him a glass of water from the sink. Her eyes trailed up his naked body as she handed him the paper cup. Then she perched on the edge of the exam table.

"So." She started, leaning on him slightly. "Using only visual and self-manual stimulation you have ejaculated three times, in a very short amount of time, but never to the 'release state' you described in your interview. Is that correct?" Will nodded. "Now we are going to increase the stimulation." Will nodded again. "So Will. We do have some options" She stared at him with her deep brown eyes. "Would you like me to provide that extra stimulation personally?" Will nodded again, vigorously.

Nurse Rachel stood and slowly pulled her top up over he belly, revealing the bottoms of her pendulous breasts. "Now we need to be precise in increasing our stimulation, so I need you to do what I ask you, and only what I ask you to do. It's okay if you get a little carried away in the moment but please try to stick to the instructions. Can you do that for me Will?"

She smiled and wiggled her shoulders for him. Will nodded and the nurse pulled her top right off revealing two glorious D cup breasts. She wasted no time and dropped her bottoms as well. She stood now completely naked and Will could appreciate all her glorious curves. She pulled her hair out of her bun and tossed it around her shoulders, swaying her big naturals.

"What do you think? good stimulation?"

"I'll say."

"Okay Will." She leaned back towards him and put on hand on his thigh. "Please continue to stroke that beautiful cock of yours. I'm going to kiss and touch your body while you do so."

Will pumped some more lube into his hand and went back to slowly masturbating himself. She put one hand on his thigh and the other on the back of his neck. The nurse leaned in and will could feel her breath on his neck, he could smell her body. She kissed his neck just below his ear, and worked her way down to his collarbone then up his neck and finally kissed Will on the mouth as she pressed her gorgeous round tits into his chest.

Will stroked his cock as Nurse Rachel kissed him, pushing her tongue into his mouth as she pressed her breasts to his chest.

Rachel felt her pussy flood as she tasted Will's mouth. She wanted to throw her thigh over his lap and impale herself on his big thick cock, but Dr. Phan was serious about the progression of stimulation. She held will's lower lip in her teeth, then released it.

"Do you like my titties Will?" She murmured. "Do you want to suck on them?"

"Oh yes please"

"You're so polite you sweet boy. You can talk dirty to me if you wa-ahhh!" She gasped as Will filled his mouth with her her engorged nipple. He released it and slowly circled it with his tongue. First one then the other. Rachel's pussy was positively throbbing as Will made love to her breasts with his mouth.

"Keep stroking that big cock for me Will." She cooed as he moaned into her tits. "Do you feel like you might cum now Will?" She whispered into his ear. "Is your cock ready to shoot another big load for the doctor and Nurse Rachel?"

Will increased the pace with which he jacked his cock. Rachel's big soft breasts were a delight to suck on, her big nipples tightened in his mouth, quivering with ever flick of his tongue. But his dick didn't seem to be ready to cum just yet." Gasped as he came up for air.

"I don't think so" He gasped. "Can I touch your pussy?"

"Not yet, but I'm looking forward to it."

"Nurse Rachel" Doctor Phan's voice burst in over an intercom, bringing her back to her job for a moment. "I suggest increasing the stimulation for Will to a manual and, if you feel it warranted, oral."

"Yes doctor" Snapped the nurse as she climbed off the exam table. She pulled a lever and suddenly Will's legs swung wide as the table opened up below him. Suddenly he was spread eagled with his throbbing cock pointed at the nurse.

"These tables are fun." She said as she placed a thick cushion on the floor in front of will, then squirted a dollop of lube into her hands and wrapped them around Will's dick. Her breasts swayed as she stroked his cock. She knelt in front of him, his throbbing dick was inches from her face as she jacked him off with both hands.

Will could feel Nurse Rachels hot breath on the tip of his cock.

"Increase to oral stimulation" came the command from the intercom.

"Yes Doctor." Rachel gasped and she plunged Will's cock deep into her mouth.

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