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Research into Human Sexuality Class

Exploring Human Intimacy: A Class Project

Spankmasters
May 4, 2024
15 min read
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Human Sexuality Class - Research
Human Sexuality Class - Research

Research into Human Sexuality Class

While in my favorite class of Sex Education, the teacher was running through the proposed research projects. Glancing at my longtime study buddy and collaborator, Rachel, I couldn't help but feel uneasy about our hastily thrown-together idea. I was hoping he would see past our blunder.

"Rachel and Rachael," the teacher announced, consulting his list, "Your paper is titled 'Sexual Satisfaction Among Singles and Couples,' which is quite an intriguing subject. Approved."

The teacher went on, reviewing each project, and finally, he reached us. "Rachel and Joanne, I see," he commented, leafing through his notes. "Let me see... 'Penile Size and Distribution.' Yes, we've seen that study before, and it has the inconvenience of relying on self-reporting, especially among those narrating the length of their own penises."

The teacher paced around the room, shaking his head. "We need to aspire to higher standards in research," he admonished. "This does, however, pique my curiosity."

Rachel piped up, "We plan on taking the measurements ourselves to eliminate self-reporting bias, sir."

The professor stopped in his tracks, surprised by her off-the-cuff response. I couldn't believe she just came up with that. Was she seriously suggesting we measure hard-ons?

The teacher appeared to ponder the idea. "Interesting... even Kinsey used self-reporting," he mumbled. "You two may have something here."

A wide smirk cracked across his face. "I believe this will be an extraordinary research project. I can't wait to see the results," he added.

As he carried on sharing his thoughts, I gasped in relief, my heart still racing. The teacher had been making a few comments on how we could compare self-report with objective measurements, then suddenly...

"How will you recruit participants?" he asked, turning to me with a pointed stare.

"Er, we could announce it around the campus," I stammered.

"No, no, no, that would attract biased participants," he shook his head. "The only way to obtain reliable data is to measure every guy randomly selected at the university."

The teacher addressed the entire class. "Gentlemen with penises, I require your help measuring the length of other men's penises for Rachel and Joanne's study. I will inform all my other classes they must participate as well. Trust me, you'll be helping out your fellow students."

A deafening silence had filled the room, and I noticed some eager grins among the boys, but others had their mouths wide open in shock.

As the teacher gathered up his notepad, heading towards the front, "I'll see all of my classes next," he announced.

Catching up to Rachel in the hallway, I grabbed her arm. "Rachel, what have you done?"

"You should be thanking me," she whispered impishly, "We wouldn't have a research project if not for our audacious plan!"

I considered that, "Well, yeah, but we'll be touching their cocks," I reminded her.

"Clearly, I can't wait," Rachel answered, grinning cheekily.

To tell the truth, the idea aroused me, considering my attraction to everything sexual. As I lacked the typical normal girl fortune or prettiness, I had difficulty attracting boys. My favorite clothing was baggy cardigans, long flowy dresses, and hats that covered my shoulders. However, Rachel was right in this single, daring endeavor. I'm actually enjoying the feeling of anticipation and curiosity.

I couldn't deny it, I was feeling a tad excited about witnessing the hard-ons of all the boys I've had a crush on for the entire semester. Particularly one. His name was Adam and he sat in front of me in the Human Sexuality class. He possessed a pair of naughty, sparkling eyes. What made it even better was that he was on the swim team, and I spent most of the class ogling his broad shoulders and his firm behind whenever he would get up from his seat.

Rumor had it that Adam had slept with almost half the girls in the class, but he hadn't given me a second glance. Heard him described as having a massive member. My mind had wandered over it several times.

"Alright, alright", I said to Rachel, "Let's head to the Student Union and figure out how we'll execute the research."

Two weeks later, the day of our data collection had finally arrived. We managed to obtain the use of three connected offices in the Biology building. In the first office, we placed a laptop with a PornHub browser up and running, along with a selection of pornographic magazines strewn across the desk.

The game plan was for volunteers to queue down the hallway. They would enter the first office alone, stripping off their trousers and underwear. Then, using the provided materials, they would attempt to harden up. Afterward, they'd jot down their measurements on a form before depositing it in a locked box.

When we were set, we'd summon the subject into the middle office. There, Rachel and I would measure the length and girth of their erections, recording our findings. The act of doing this made my body break out in sweat.

Once measured, they'd head to the third office, where they could dress in seclusion before leaving.

At 11:00 am, we were all set. Peeking through the frosted glass into the first office, we observed our first participant. Rachel seemed collected, but I was a mess, sweat dripping on my forehead and my heart pounding in my chest.

"You can measure the first one," I urged Rachel in a hushed tone.

"Thank you," she retorted with a smirk. She then hollered to the person in the vicinity, "You can come in now."

A bashful boy entered, wearing his shoes, trousers, and pants. He was naked from the waist down. I could feel my breath quickening as I noticed his erect cock, the foreskin peeking from under his pubic hair.

"Stand there, please," directed Rachel, picking up the tape measure. The boy started stroking his meat rack a bit, trying to get it into peak hardness. Seeing him do that sent a jolt of electricity straight to my groin. Rachel approached and wrapped the tape around his prick, covering about half its length.

"Uncircumcised, 5 1/4 inches girth," she shouted. I jotted that down in my notebook. Then she put one end of the tape measure up against his pelvic bone and measured the length. The boy looked less nervous and appeared to enjoy the light touch of the tape.

"Length, 6 1/2 inches," she announced. I noted that down as well.

"Thanks," she told the boy, "You're free to go."

He moved to the next office and closed the door. "See?" Rachel said to me, "It's a piece of cake."

"Fine," I responded, "But I'm still shaky, look." I lifted my hands to show her.

"Alright, I'll take care of the next few, and then it's your turn."

The following boys came through, and Rachel measured them. Some were a bit smaller, some a bit larger than our first subject. One of them was a lad I fancied; he happened to have the biggest one of the bunch. I couldn't help but stare at his impressive, standing cock, which stood firmly upright. I wondered if he'd given me a wink as he left.

My nerves shot through the roof as I removed my pullover. Usually, I wore oversized band t-shirts to hide my curves, but the one I'd chosen that morning was starting to feel a bit constricting. As I started to realize that it emphasized my substantial breasts instead of covering them like usual, Rachel nodded approvingly at my chest. "That ought to help with the erections," she snickered. I noticed she was wearing a low-cut top, and after consideration, I realized she had been making an attempt to attract the boys by subtly showing off her cleavage.

"Your turn now," she said, giving me the tape measure. "Incoming!"

The next dude I fancied happened to be another one with a big one. God, I was nervous all over again. I caught him peeking at my chest and quickly averting his gaze, feeling embarrassed. His cock was slightly larger than most we'd encountered and extremely firm. I wrapped the tape measure around the midsection of his member.

"Five inches girth, circumcised," I conveyed to Rachel as she wrote it down. "And here we go - Seven inches length. Wow."

I was struggling to remain professional, yet the throbbing ache between my legs refused to go away. I couldn't get enough of men's dicks. Seeing so many was truly turning me on.

Rachel asked, breaking me from my thoughts as I was staring at his manhood. "How big is it?" was her question. I quickly put the measuring tape against his cock's base at the pubic bone and held it firmly in place. Then I slid the rest of the tape down his shaft. Inadvertently, my fingers touched it, causing him to let out a soft moan. "Oh, sorry about that," I apologised, trying to steady the head of his tool for accurate measurements."Six and three quarters inches," I proclaimed, and Rachel immediately registered it down."Thank you," I told him, but he just stood there, smirking at me."Want to go grab a drink later?" he enquired, surprising me. My face flushed red, and Rachel covered her mouth to hide her laughter. "Sure why not?" I replied."Text you later," he said, departing the room with his erect cock swaying from side to side."You are one lucky bitch," Rachel said, grinning. "I'd love that cock in me.""It's just a drink," I muttered, blushing."And you'd sleep with him?" she teased, raising her eyebrows."Obviously, I would," I admitted.

The following guy entered. "I'm sorry, but I can only give you a soft one," he confessed. "I forgot about this research and had sex with my girlfriend just before." He didn't sound particularly remorseful.

"It's fine," said Rachel, quickly approaching him and pushing me aside.

When she reached his crotch, she began to masturbate him. I was stunned. "Rachel!" I exclaimed. She didn't listen, sucking his partially erect penis while touching her boobs to his arms.

"That feels good," he commented. "Would you mind getting naked?"

"Of course," she joked. Popping one out of her cleavage, she then exposed the other. "There you go!"

Rachel resumed jerking him off. His member became larger and firmer. It looked really long.

"We're almost there," he said. "But my girlfriend uses her mouth to get me hard for round two."

"Really?" Rachel seemed intrigued. "In that case..."

I gasped as she dropped to her knees in front of him and took his nearly hard cock into her mouth, sucking and licking it. I could tell his penis was now fully erect and even more extended than any other we'd seen.

"Fine, enjoy it," Rachel stated, standing up and recording the measurements. She smiled at the guy while still exposing her assets.

"I owe you," the guy said, moving closer to Rachel.

"What do you mean?" I asked, shocked.

"Fine, Rachel!" I exclaimed when she knelt back down to suck his cock again. "You're really doing this?"

I couldn't deny feeling a tinge of envy as I watched her expertly suck and stroke his erection. I couldn't help it, though; I felt wetness between my legs. "My pussy is wet," I thought, holding back the urge to masturbate myself.

The guy's breathing became heavier, accompanied by increasing moans. Suddenly, he let out louder groans, and I could see the tension develop in his balls as his shaft pulsated. Finally, his semen shot out of Rachel's mouth onto her chin and down her chest onto her breasts. Despite my initial disgust, I couldn't turn away. All I could think of was emulating Rachel."It's just science, darling," Rachel stated, getting up. "See you later."

"Um, not leaving me like this, are you?" the guy asked, eyeing Rachel.

There was a pause before Rachel bent down and took his erect and impressive member into her mouth as I witnessed her masterfully service him. Realising her actions, I was flustered. Still, I couldn't break my gaze or stop the sexual arousal mounting within me."I'm going to come," he growled. His groans grew louder as his cock pumped sperm into Rachel's mouth. She swallowed greedily, but some spilled out, dripping onto her chest.

"Next!" Rachel declared.

The next man entered the room. "I've got a rock-hard one for you!" he gloated. "I haven't had sex recently, so I'm all ready."

"Exciting," Rachel replied, responding to his boastful claim.

She asked him to stand against the wall. Then she took the measuring tape to gauge his length, but he suggested the girth. "I think you'll like this one," he said. She agreed and decided to measure his girth instead. It was indeed larger than the length.

"That's plenty big," Rachel observed, handing the tape to me and recording the stats.

The man stood proudly before us, and I couldn't help but compare his size to previous participants. Although I was told I couldn't, I slipped my hand under the table to touch myself. His presence was causing me to become aroused."Seven and a half," Rachel murmured, memorising his girth.

"Cheers!" he said, high-fiving me and then Rachel.

Rachel rose and I handed her a tissue to clean her face and breasts.

"Leave!" I told the young man, "There're still more guys to measure, you know."

He smirked at us both and departed to the next room. Rachel readjusted her breasts and flashed me a flirtatious wink.

"Can't believe you sometimes," I said, trying to sound serious. But I couldn't help but giggle. "You're really naughty."

"I just couldn't resist," she admitted, then invited the next guy.

This man was not one I was fond of. He was a football player who'd always strut around like he was the best thing for women. I took a glimpse at his erect organ and had to stifle a chuckle. His cock was as hard as a rock, but so small.

Rachel eyed me as if daring me to do it.

I wrapped the measuring tape around his small penis. "Four inches in circumference," I called out for Rachel to write down.

Measuring the length was more challenging. "Three inches long," I declared. He turned bright red and hurried away, replacing his arrogance with embarrassment.

As soon as he was gone, Rachel and I shared a secret laugh. "Shhh! He might hear," I cautioned.

We alternated measuring each new subject, the sight of these men's cocks igniting my desire. With each, I grew more aroused by the soft feel of their skin and the sight of their powerful erections. My t-shirt was soaked with sweat, the dark patches revealing my shaggy, hairy armpits. I couldn't help but wonder if my panties were drenched.

Finally, the moment I'd been longing for and dreading came. Adam marched in, holding his pants and trousers in front of him.

"This is the last one," he stated. My colleagues and I both stood in astonishment, gazing at his unit hidden by his garments.

Rachel grabbed the measuring tape while I made my way to him. "Hi Adam," I stuttered out, realizing he didn't know my name.

"I like your shirt," he said cheekily while still covering himself.

My eyes glanced down at the t-shirt, now revealing my large breasts spilling out of the fabric. "Thank you," I stuttered. "I've got to measure you now."

"OK," he said serenely. He was obviously not too concerned about anything.

Rachel supported herself in my arms as I approached Adam.

"Hi Jo," Adam greeted with a twinkle in his eye.

Blushing, I managed to ask, "What's your measurement?"

I wrapped the tape measure around Adam's cock, my palms shaking. "Six and a half inches girth," I shared.

Adam was fully naked, which shocked me, but I couldn't help but gaze at his incredible cock. "Uncircumcised and straight," I called out for Rachel to record.

Adam's penis was perfect, a porn star's dream. Holding it, I appreciated the mixture of smooth, soft skin and firm hardness. I gently ran it against himself in a circular pattern. This man whom I didn't even know was turning me on beyond belief. His warm hands held me closely, rubbing my neck and back, his lips pressed against mine, teeth nibbling on my bottom lip, while his other hand squeezed a breast, causing shivers to run through my body.

"Want to fuck?" I breathlessly whispered. My words, not intentionally, apparently meant right now.

I tugged at Adam's pants, pulling them to the floor and freeing his dick. It was massive. My lips now locked with his, my hand massaging his back, I realized my question had been taken as an invitation for this moment.

As we passionately kissed, he pushed me onto my back, thrusting his cock into my soaked pussy. It didn't hurt, but I'd never felt a man this big before. While pumping my pussy, I caressed his balls, my fingers teasing them while he mouthed my tits. Everything about it was overwhelming in the best way. An irresistible orgasm began to mount.

"Should I kiss you?" I asked, gasping between deep kisses.

"Yes, come on!" he encouraged. His kisses were forceful yet gentle as I reveled in his hands on my hairy breasts. He spread my legs wide, eliminating any discomfort.

Adam teased my nipples through the thin fabric of my bra before kissing them through the material. My entire body shook with glee, moaning more soggy kisses. I surged forward to absorb his full length. I couldn't handle this much, squirting so much pussy juice it splashed onto his thighs, coloring them in bright red pearly liquid. I was overwhelmed by this whirlwind of pleasure, when finally he came, pushing me backward as he nutted on my breasts and stomach. After our brief fling, we both sighed in satisfaction.

The feel of his touch ignited a fierce passion inside me, with each stroke of his tongue against mine causing electric sparks throughout my body. I relaxed into his overwhelming embrace, overwhelmed by the irresistible taste of his lips. As he pushed me against the desk, I felt a desire building within me, a powerful need for him to fuck me consuming my every notion.

My bra suddenly slipped off; he must have untied it. I didn't even notice. He pulled away from the kiss, leaving me breathless for more. And then, one of my nipples was in his warm, wet mouth. It immediately stiffened, and his forceful sucking sent a burst of emotion through my entire body. I let out a loud cry of euphoria, my head arching back in bliss.

He tongued first one nipple, then the other while rubbing the other with his fingers, and then switched sides. The sensation was too much, and I thought I might come, just from the nipple stimulation.

I realised that Rachel was still in the room. I looked at her, and saw her face and chest were flushed. I was taken aback to see that she had her hand in her unbuttoned jeans.

"You should... leave," I started to say to her, my breath becoming more rapid and irregular.

"Hell, no way," she declared spiritedly, "I want to watch this."

I didn't have the power to argue. Adam swiftly removed my long skirt and knickers in one quick motion, causing them to gather around my ankles. I leaned back onto the desk, sitting on the edge, and subconsciously parted my legs for him. My wet pussy dripped with my secretions, my thick bush matted and damp. I felt his eyes on my pink opening, and I knew he liked what he saw.

I was still holding his solid, pounding cock. I pulled him towards me and positioned it at my entrance. With a swift thrust of his hips, he filled me, stretching me wider than I had ever been stretched before. His cock was so big, and the feeling of it filling me felt unbelievable. The pleasure filled me as I felt every inch of him as he slid deep within me. I let out a cry of joyful surprise.

He retreated almost completely, and then thrust inside me again, going even deeper this time. "Fuck," I cried out. I could feel myself nearing climax, my body crying out for release. The third thrust sent me soaring over the edge, prompting me to almost scream aloud. The happiness overwhelmed me, spreading from my core to every part of my body, making all my nerves tingle with pleasure.

My orgasm didn't deter him. He continued to fuck me right through it and beyond. My tits bounced wildly, and I could see my white essence depositing around the base of his cock. Incredibly, he'd apparently managed to bury all nine and a half inches inside me. I hadn't even imagined this was possible.

As he savagely fucked my body, I was engulfed in a sea of pleasure, each thrust sending jolts of ecstasy coursing through my being. I was consumed by the intensity of his fucking, my senses overwhelmed by the sheer satisfaction of being filled so well by him.

I glanced briefly at Rachel. There she was, urgently rubbing herself through her jeans with one hand and pinching a nipple with the other. Her breathing was ragged, her cheeks flushed with desire as she watched us.

"You should," I started to say to her, still gasping for air, "Go."

"Not on your life," she contradicted stubbornly, "I want to enjoy this."

I couldn't argue. Adam drew down my pants and then picked me up by the waist, lifting me so my bare pussy was open to his eyes. His eyes focused on my pink opening, and I knew he was enthralled by the sight.

He then emerged behind me, still holding me at my waist. He entered me from behind, stretching me in ways I'd never imagined possible. He began to pound into me with more force, still unrelenting. I couldn't see Rachel, but I could hear her climax.

He held my thighs wide open for him, his gaze captivated by the sight of himself fucking me. A sudden exhilaration arose in me as I imagined him could see the entirety of my exposed body, including my asshole. And then, much to my delight, I felt his thumb flatten against it, sending a ripple of euphoria through me.

The sensation of him opening my rectum sent me careening over the edge once more, my body trembling with the intensity of my climax. I struggled to maintain consciousness as wave after wave of pleasure rolled over me, smashing into me, drenching my breasts against the cold surface of the desk.

And then, immediately, I felt him pull out. A long stream of warm cum shot across my back, coating me in heated cum. Wave after wave of cum splattered over my back, ass, and drenched my folds.

The three of us were panting heavily. I slumped against the desk, unable to move any further. The entire experience had lasted less than five minutes, but it was the best sex of my life.

"Bloody hell," Rachel murmured.

When I finally had the chance to gather myself, I turned and took a look at Adam. His chest was slick with sweat, and his enormous cock dangled lifelessly between his legs, still shiny with my juices.

He inquired, "Are you two ladies interested in coming to my place for another round?"

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