At the Cardio Lab

by JPMitchellSmith

18 Mar 2017 7777 readers Score 8.9 (103 votes) PDF Mobi ePub Txt


Last week I was sent by my swimming coach to the cardio lab at the town medical centre. "Don't worry," he reassured me. "It's just a routine assessment. I send all my best athletes there."

I took a bus across town in my casual wear: running shorts and trainers since I was told there would be a treadmill run, and a sleeveless hoodie that I normally don when I need to go into town and look covered up. I had my hoodie zipped up to just my navel, so my chest was fully visible. The morning breeze felt good on my bare skin and the hoodie flapped open to reveal my nipples, which were starting to harden. I absently rubbed my pecs as the bus trundled along the main road, my Oakley shades shielding my eyes from the bright morning sun.

A tall athletic teenager boarded the bus. Seeing only a few empty seats left, he took the one opposite mine, facing me. He glanced in my direction and nodded, then looked out the window and listened to his iPod. I gave him a once-over, my roving eyes hidden by my shades. He was really quite muscular, and his biceps stretched the muscle tee he was wearing. He was wearing skinny jeans at least two sizes smaller than his shirt, but they sagged low on his butt revealing creamy cheeks. 

I had been resting my elbow on the window bars, and the armholes of my hoodie were cut low so that the wind blew across my nipples and obliques, which were fully on display to whoever looked over. The younger boy stole a few quick glances in my direction, but continued to look out the window. I thought he was rearranging his hands underneath his bag on his lap. I slouched down lower and stretched, flexing my triceps. He stared a bit longer at my arms, then looked away again. More surreptitious arranging.

By this time my cock was filling up -- I was getting turned on by exposing myself. I always go commando, and the tent in my shorts were becoming obvious. I splayed my thighs wider. The teenager shifted his bag a bit so that his crotch was visible to me, but not to the passengers sitting next to him. He had his fly open! He had no underwear on, and his hard cock jutted out. It was six inches and drooling quite a bit of slime. I was instantly hard but I didn't want to lead him on to something I couldn't finished, so I just sat back and enjoyed his attention on my cock.

The boy's eyes fixed on the wet spot on my shorts. My precum seeped out through the mesh and started dripping off onto the floor, forming a transparent, slimy string. The boy tugged on his cock, which throbbed and spewed several drops of cock dew. He was getting flushed and breathing faster. He started playing with the precum on the tip of his cock.

DING! It was my stop. I gave the boy a silly grin, then gathered up my bag and stood up. My nine-inch tent was even more obvious now. I held my bag in front of me and alighted the bus, but not before leaving a trail of precum on the bus seat. The boy's eyes followed me hungrily all the way down the bus.

I reached the Medical Centre and entered the cardiology wing. My hoodie was still half-zipped, and the cool air felt great on my bare, warm skin. My erection had gone down and I could feel my soft cock hanging low and loose in my shorts, sliding around in the precum that had leaked. I shouldered my bag and asked the reception for the room.

"Let's see..., JP, you're in room 9. Please wait your turn." The young lady was very helpful, blushing a bit as she tried not to stare at my exposed chest. I flexed my pecs a bit and she giggled shyly, covering her mouth. I grinned and went to sit down at the waiting area, slouching and crossing my left ankle over my right knee. From the draft in my shorts I knew at least part of my cock and balls were exposed if she looked low enough. I placed my arms on the empty chair backs on either side and let my hoodie slide open wider. The receptionist glanced my way a few times but seemed to be busy with some paperwork behind the counter.

A lady in scrubs called my name. I stood up and followed her into room 9. Seated at a treadmill machine was a guy in scrubs, perhaps mid-twenties, with roguish piercing eyes and short hair. His very obviously muscular body filled out his scrubs tightly, leaving nothing to the imagination. There was no shirt under  his top, and his pants were tight and tied low at the waist. His muscular forearms were smooth and tanned, rippling with muscles and I wondered how they moved when he jerked off. Suddenly the room felt hotter than it had a few seconds before.

"Good morning JP," he greeted me in a deep voice, standing up to shake my hand. "Thanks Samantha, I'll take it from here, you can assist Dr. Kane." The lady took a long lingering look at me, then left the room.

"'Morning," I greeted him as the door closed behind us. "I'm here for... actually Coach didn't tell me much about this."

"Don't worry, I'll walk you through it," the cardio technician -- his name tag read 'Dave, cardiac tech' -- replied. "By the way, I'm sure you know my name is Dave." He pointed to his tag. "You're here for an evaluation for some assessment on your heart function, but believe me, your preliminary examination was perfect." I had been checked over by my school doc last week, and he must have sent the results over. "Do you have any chest pains or shortness of breath when you exercise?"

Dave proceeded to take my medical history then had me take off my hoodie to do a basic exam. "The room temperature is kept a bit higher so our patients don't feel the chill when they disrobe and run," Dave explained. After listening to my heartbeat for several seconds, pressing his other hand onto my pecs to steady my trunk as he listened with a stethoscope, he smiled and said, "so far everything's okay. You're really very well-built for a swimmer."

"Thanks," I replied, "I do lots of sprints." I struck a double-bicep pose. Dave moved his hands smoothly up my torso and gripped my biceps in his palms. I think he moaned a bit.

"Unnhhh... ah, nice," Dave complimented as he  felt up my pecs as well, brushing his very warm and rough palms over my nipples in the process. I was feeling the familiar thrill of being exposed, especially since I was really attracted to Dave. My cock lengthened a bit but remained soft. I wondered if I would be required to run shirtless. I've run shirtless all the time, and even without shorts on a dare, but if Dave asked me to strip now I'd get a serious woody...

"Well, let's see you run now," Dave shook me out of my thoughts as he slapped me on my back. "We will need to attach some electrode pads to your chest and tie a blood pressure monitor to your arm," He then proceeded to stick some stickers onto my chest, rubbing his fingers over my bare skin as he did so. By the time he was done with attaching wires to the stickers, my nipples were erect and my cock was back to making a semi-tent in my shorts. Dave didn't seem fazed, though. He also didn't ask me to put my shirt back on.

"Now you'll have to run the treadmill," Dave then proceeded to explain the protocol of the treadmill test. "We will increase the gradient and the speed every three minutes. This will stress your heart. Please call out if you feel any pain or discomfort, or if you want to stop the test. We will go as far as you can continue running. Please hold the bar in front of you with both hands throughout the test. All set?"

I answered in the affirmative, and off we went. The first stage of the protocol was just normal walking and I strode easily on the treadmill. Dave did some stretches overhead and to the side, so his fitted sleeves rode up his biceps and stayed up, giving me a good view of his strong arms. The hem of his top rode up his taut abs and I caught a glimpse of his treasure trail.

"Damn, it's hot today," Dave rubbed up and down his tight top, bringing his shirt up to his pecs and exposing his well-defined six pack. "Did the A/C break down or something?" He then reached down and adjusted his package, and then reached inside his pants and his hand stayed there! All the while the blood pressure cuff was inflating and deflating and Dave used his free hand to click several things on his screen. He saw me looking at his hand in his crotch, and smiled sheepishly.

"Uh, force of habit, sorry," he blushed, removing his hand. "I have a habit of playing with my PA when I focus."

"No worries," I smiled. Did he just say he has a PA? "It-It's cool. I play with my nipples w-when I want to focus." God, why did I say that? He must think I'm some dork.

"Alright, dude," his grin was bright and infectious, and he stuck his hand into his pants again. This time, I saw a large ring in his pants, and he was jiggling it absentmindedly. Looking at his monitor, Dave announced, "next stage in a minute, JP."

"Ready? And go!"

The treadmill whirred louder and sped up. As the gradient increased, I found that I could still stride on the belt without breaking into a run. A bit of sweat built up as I walked briskly, and some ran into my shorts. I made to adjust my shorts.

"Uh-uh, don't take your hands off the bar," Dave nodded at the bar support in front of me. "I'll adjust your shorts for you." He stood up and reached over, his bare arms and biceps brushing my waist as he gripped the elastic waistband of my shorts and pulled them down a few inches. This loosened my cock and balls -- ah, comfy now -- and had the effect of showing up my V-lines and upper half of my ass crack. The mesh shorts were well-worn and I didn't feel any chafing at all, and as I always go commando the shorts felt like a second skin. Dave's fingers rested on my waist, and I could feel the stubble on his chin at the back of my neck. I shivered.

"Better?" he asked. I nodded yes. Dave released his hold on my and looked down at himself. "Great, you've made me wet... with your sweat. This is the only set of scrubs I have today. I gotta strip." With that Dave stood up and whipped his scrubs over his head. I caught sight of well-balanced pecs, trimmed chest hair and a defined six-pack, topped by wide shoulders and bulging biceps and triceps, all poured into a very trim 30-inch waist. His scrub pants were hanging very low now, and I could make out the base of his cock and some pubes at the end of his treasure trail. His bubble butt and the very large PA were probably the only things holding up his pants.

In the meantime, the treadmill went higher and faster. I had started to jog at this point, and concentrated on my breathing. Dave looked at me and I gave him a thumbs-up. I preferred exercising in the water; I did not like running, but did it anyway to keep my stamina up.

"Next stage," Dave called from his seat where his hand was again inside his pants playing with his cock and PA, while his other hand continued to click on the monitor like what a technician would normally do (I guess). I was starting to sweat a lot more as the treadmill sped up again. I usually shave my whole chest and pits -- swimmer's habit -- so instead of musk I could smell my fresh sweat and chlorine. The room was really, really hot now. I started leaking a bit.

"Stage five," Dave called. My cock was hanging loose and swaying from side to side inside my shorts, which had now soaked up my sweat and ridden lower. I gave Dave a meaningful glance, and he reached over to help me adjust them. His biceps slid over my sweaty body and his fingers rubbed sensuously over my waist before he managed to grab my waistband, pulling them up slightly. The friction from the mesh over my cock gave me a start and my cock responded, tenting up slowly.

"Stage six," Dave called. "It's gonna be very steep now, let me know if you wanna stop."

"I'm... f-f-fine," I huffed. Even though I was panting a bit now, the athlete in me was enjoying the exertion and exhilaration in sweating and panting. I wiped my sweaty brow on my shoulder. I could feel my pits and upper body getting drenched in my own sweat. Dave seemed to be enjoying the show, all the while still holding up my shorts. His arms were now pressed hard against my body, and my sweat must have been drenching his own chest, where his chest hairs were now plastered to his skin.

"Alright, I'm done," I called, and immediate Dave's hand shot out to click something. The treadmill started slowing down.

"Five minutes for recovery," Dave explained. "The gradient and speed will lower but you'll have to continue walking." I stopped running and with a few deep exhales, starting matching the treadmill's pace with a brisk walk. My thigh and calf muscles ached with the exertion and more sweat poured off me, aided by the tropical heat of the room.

"Fuck, did someone turn on the heater," Dave complained. "Now everything is sticky and wet." Grinning at me, he palmed over my erection in my sweaty shorts -- my dick decided to come out and play in earnest when I stopped running -- and gave me a few rubs. I gasped and moaned as I leaked into his hand.

"Well, I gotta strip my pants too, it's getting wet," he said hoarsely, noticing a wet spot on his own pants. Divesting his garments, Dave was now completely naked beside me. His erection was easily eight inches, leaking copiously from the wide slit that was held open by a large, silver prince albert piercing. My gaze was fixed on it. The PA ring looked bigger than any others I'd seen on internet porn, the thick shiny metal making a three-inch loop. It must be very heavy, but Dave's erection continued to point upwards.

"Never seen one up close before," I commented. "Does it hurt?"

"Nah, I was so turned on the whole time I got it," Dave grinned and winked at me again. He absently played with his cockhead and the PA while looking at the monitor. "Another minute to go. Can you give me your shorts when you're done?"

Not knowing why except thinking, God, another cute hunk wants my cummy shorts?, I said, "erm, yeah, sure." And pulled off my shorts when the treadmill stopped after a minute. My mesh shorts were soaked in sweat and precum by now, and my nine-inch erection stood up proudly pointing at the sky. The room was getting saturated with the musky smell of both our sweat and precum.

Dave pulled the wires and stickers off my chest with a bit of force -- obviously not required, but the sharp pinched gave me a bit of sexual tweak -- and I handed him my wet shorts. He held them up to his nose and inhaled deeply.

"Aaaah," Dave closed his eyes in ecstasy, then closed his mouth over where my crotch had been, and tasted my precum. "Delicious."

"There's more here if you want it," I panted while getting off the treadmill. It was getting messy in the room -- the treadmill belt was covered in sweat and slime. Dave grabbed my hardon and pulled me closer.

"I'll help myself," he breathed, coaxing a large drop of precum from my slit onto his thumb, then brought it up to his lips. He flicked his tongue out and slowly licked it off, eyes rolling up. I was immensely aroused by his wanton display, and my cock became even harder. I grabbed Dave's PA ring and he moaned.

"Yeah... play with it, JP," Dave breathed. "I've been wanting you ever since you entered the room." He lifted my right arm and licked under my pit, his rough tongue sending sparks of pleasure straight to my cock. I groaned loudly. Dave repeated with my left arm and I could barely stand up, my knees felt so weak. He smiled and wrapped his powerful arms around my waist, holding me up while crushing his hard cock and PA into mine. We were both leaking so much that there was really no friction between our cocks as they slid against each other.

"Unnh, you sexy beast," Dave started talking dirty now. I got even more turned on. "Do you know how hard I was the whole time? You're damned hot and I think you were heating up the entire place by yourself." He was nibbling on my neck now, then going lower and biting my nipples. I was nearly cumming, but Dave continued to grind against me.

"You're so hot... your sweat is so sweet... I wanna get your cum all over me and wear it for the rest of the week," Dave continued his trash talking, his teeth abusing my nipples and sucking on my pits, his hands roaming my chest and abs freely. His slippery, hard cock felt warm against mine, while his PA was cold and made me shudder as Dave rutted against me. I finally couldn't take it anymore.

"I'm cumming," I called, bucking my hips faster and holding onto his sweaty, naked body. "Oh my gawd, oh god, oh oh oh....."

"Unnggh, yes my hunk, cum for me, cover me with your spunk!" Dave nearly shouted as my clear precum started turning white, and with a few more short spurts, I started cumming with a groan. Stream after stream of thick cum shot out of my cock and the 'schloooop, schlooop' matched the slicking sound of his cock rubbing against mine. The hard PA grinding against my cockhead gave me one of the best orgasms I'd ever felt, as if it were kneading my meat, and the pressure created against my cockhead had me reeling. Only Dave's arms around me kept me from keeling over.

"Aaah, I'm cumming too," Dave called, and seconds later -- with my cum still hot on his face and chest -- he shot several spurts of his own spunk, one from each end of the PA where it pierced his slit. The upper stream hit me in the face with a hot splash, while the lower stream felt like it was running down my thighs like a warm waterfall.

"Nnnngggh, mmmph, gggaahhh..." I couldn't tell which of us was moaning and groaning now. I began to get light-headed from all that cumming, and Dave's lips locked around my neck again, sending a fresh row of sparks to my cock. I held onto his strong shoulders for dear life.

"Ohhhh, my..." I said weakly, now that I had cum one last time and it felt like my softening cock was slipping through Dave's PA ring. What the hell? I looked down and saw that was exactly what was happening. His largen ring was wide enough for my softening cock to slide inside and be locked together with his own. I staggered a bit and we crumpled to the floor together, landing in a large puddle of our own cum, cocks trapped together in his PA.

I thought I briefly passed out, because before I knew it, a female voice called over the speaker phone. "Tech Dave, tech Dave, line one please." Dave groaned as he shook off his post-orgasmic stupor and disengaged our cocks. He got up to answer his call. I admired his wide, muscular back and bubble butt.

"Yeah, yeah. Okay. Well, I know. Yeah. Alright I'll send the stuff to you right away." Dave put down the phone receiver, licked his fingers and hands clean of cum, then clicked something on the computer. I got up slowly, the heat in the room was making me sluggish, and it reeked of cum and sex now. Also, I just came buckets and needed at least an hour to recover.

"Well, thanks for humouring me," Dave grinned, using his scrubs to wipe himself off. There was cum in his hair and he rubbed it in. His chest hair was plastered with a slimy sheen as well. "Hmm. Can't be helped." He threw the scrubs into a bin and took a fresh set from a cupboard.

"Hey! I thought you said they were your last ones," I remembered. Dave grinned.

"That's why I thanked you for humouring me," he answered. "Or would you rather not have?"

I grinned. "Of course I'd have," I replied, putting on my shorts, which was now soaked with our cum. The rest of my body was also drenched in cum from my face to my crotch. My thighs were dripping with Dave's cum, now drying off to a musky sticky trail. "Damn, I wish I don't have to wipe all this off. Hell I wanna go to bed tonight with your cum all over me." I said. Dave's cock lurched, and his PA bobbed up and down.

"You ARE a beast," Dave laughed. "Don't worry, there's a back door from here, you can go out without being seen."

"Actually...," I drawled. "Actually I don't mind going out like this. Everyone will be wondering what's going on." I looked at his reaction. Dave was grinning from ear to ear.

"Wonderful!" Dave gave me a high five. "I love an exhibitionist. I never wear anything under my scrubs so everyone can see my PA.. Let me see you out." He gave me a hug, smearing cum all over our bare chests and arms. He pulled my shorts a bit lower so it sagged on my butt.

"Seeya around, wanker," he winked at me.

"Same to ya, fucker," I gave him a brief peck on his lips. I tasted my own cum -- the stuff he had sucked out of my shorts earlier. I licked his lips. He sucked on my neck to make sure I had a huge hickey.

I made it out of the room just as he finished dressing in a fresh set of scrubs, again tying his pants lower on his hips than I'm sure was official, his PA outline fresh against the clean linen and already making a wet spot. I didn't bother to put on my hoodie, but slung it over my right shoulder with my bag. The receptionist took a look at me and froze. I guess I looked the perfect picture of ruined debauchery, shirtless and covered in cum. I was giving off a post-sex musk too.

"*gasp* Um, sir, please have a seat while we settle your payment," the receptionist was flustered to the point where her pens kept dropping to the floor and papers flew all over. I smiled and sat down in front of her, crossing my legs again and leaning back with my arms over the adjacent two seats. There was nobody else at the waiting area for the moment, and I briefly wondered if cute guys always came out of Dave's room covered in cum. Some of his cum was still running down my calves into my shoes.

"I..., uh, please, s-sign here p-please," the receptionist passed me a form. As she stood up to hand it to me, I saw her skirt was pushed down to reveal lace panties. Her cream-coloured skirt looked wet and the zip was undone. Had she forgotten to zip up her uniform? She was breathing hard and flushed, and suddenly it hit me -- the sour smell of pussy juice was hanging heavy in the air when I sniffed. She was getting herself off while Dave and I were having fun inside! I smiled beatifically at her and, making sure there was nobody looking this way, licked her on the earlobe. I dipped my forefinger inside my cummy shorts, took it out with a trail of semen hanging onto my fingertip, and held it in mid-air. She quickly leaned forward to lick it all off, then sucked my finger into her mouth. I kissed her lips and made out with her for a few seconds, passing my cum between our mouths but finally pushing it all back into hers.

"A bit of something for you," I whispered in her ears, my hot breath making her shiver. I saw the wet spot getting bigger, and she shook and moaned softly: an orgasm had taken her by surprise! She held onto the countertop with one hand, while with the other she reached down, pulled her lace panties down, and stuffed two fingers inside herself.

"Ooooh, uuunh, aaaah," her climax was dragging itself out, as the pleasure danced between her fingers in her cunt. I smiled, kissed her on the lips again, then straightened up away from the counter. I said my goodbyes as she was still hanging on weakly to the counter, cum dripping from her panties and soaking her skirt.

The bright sun greeted me as I exited the building, and the warmth heated up the dried cum on my body. I stretched myself, catching a whiff of the strong odour, and attracting the glances of a few college kids standing at the bus stop, all of them barechested and wearing boardshorts loosely in this hundred-degree weather. This will be an interesting ride back to my dorm.