Health Sex

Monday morning.

Min-ho sat on the living-room sofa, staring into empty air. Mi-young was out, and alone in the quiet he had the Status Window open, sunk in thought.

Right. The points.

Twenty points, the prize for winning Running Woman. The single point left over from before had been spent on his looks, so what remained to him now was exactly twenty.

Agility... that's the one I'm shortest on.

That hair's-breadth gap he'd felt in the chase with Tae-min. Strength had let him crush the man outright, but keeping up with Tae-min's nimble movement had been a struggle.

First, get every stat to fifty or higher. Balance matters.

Min-ho hit the point-investment button without hesitation.

A low thrum moved through him.

Muscle clenched, then swelled. His body felt as if it had shed a good twenty pounds, and he could feel his ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠nerves firing far faster than before.

Agility 50... among ordinary people, that ought to put me on the quick side.

Not athlete-class, and nowhere near an Olympic medal, but in everyday recreational sports he would sit near the top. Min-ho studied himself in the mirror. He still didn't have the knotted bulk of a bodybuilder—slim to the eye, with fine muscle laid in cleanly, the so-called compact build. Hidden inside it, though, was an absurd Strength of 53.

This new agility... I want to test it.

For the first time in a while, the gym came to mind. And with it, Trainer Kang Se-hee. Last time he had taken his pleasure only from her mouth; he still hadn't properly tasted that lush body.

Especially that ass... a full, tight apple hip.

The thought alone left his groin aching. Min-ho pulled out his phone at once.

An hour later.

A members-only VIP fitness club in Gangnam. Min-ho and Ji-eun stepped through the door, and through the bright music and the clash of iron, one woman seized the eye, presence pouring off her.

Trainer Kang Se-hee.

She was buried in her work in the free-weight zone.

"Hnnngh... haah!"

Every time she drove a heavy dumbbell up on a ragged breath, the muscle of her whole body seemed to scream. Today she wore a beige sports bra and high-compression leggings of the same color. The beige clung so close to her skin that from a distance it created the illusion she was wearing nothing at all, and the effect only laid her barer—a muscle-packed figure that looked ready to split its seams.

Sweat had soaked the bra, and each time she moved, the deltoids at her shoulders and the lats down her back split into sharp relief. What truly caught the eye ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠was her lower body. Whenever she sank deep with the dumbbells, the compression leggings drew tight to their limit. Thigh muscle swelled inside them as if it might tear free, and those famous apple hips bared their outrageous volume without shame. Hard as something cast from steel, and still the body had not lost the lovely curves particular to a woman. She was, quite literally, vibrant health made flesh.

She finished the last set, set the dumbbells down, and wiped the sweat away as she turned her head. Only then did she find Min-ho and Ji-eun. Her eyes went wide, and she lit up.

"Oh my! Mr. Min-ho! It's really been ages!"

Up close, Se-hee was the same as ever. No—fresh off the workout, she looked even more pumped, more bulked, than before. Above the beige leggings, an enormous, rock-solid apple hip stole the gaze clean off her.

Damn... that's the one.

Min-ho smacked his lips before he knew he was doing it. The urge rose in him to bury his face between them that very moment and lick the deep cleft with his tongue.

"I've only been seeing you on TV, and I was dying for the real thing. Your body's gotten even better, hasn't it?"

Se-hee pressed his forearm with a sweat-damp hand, marveling as she did.

"Ah, let me introduce you. This is my manager... Manager Kang Ji-eun."

"Hello. I'm Kang Se-hee."

Ji-eun and Se-hee traded greetings. Se-hee's eyes sparkled at the sight of Ji-eun's slim figure.

"You've got a great figure too, Manager. I've kept the VIP room clear again today."

The VIP training room.

The door locked, and a clandestine air settled over the three of them.

"Well then, shall we change into workout clothes?"

Min-ho drew his clothes from the bag he'd brought. The outfit he'd promised Se-hee last time. Top off. And below... a single pair of brief-cut tights.

Long, sleek legs, and over the tights the enormous outline of him, bulging, laid bare as it was.

"Oh-ho..."

Se-hee folded her arms and raked him up and down.

"You kept your promise? I like what I see."

Ji-eun flushed at how boldly he was exposed, and still she couldn't tear her eyes away. At Min-ho's urging she shed her outer layer as well and stood in thin yoga clothes.

"All right, Mr. Min-ho. Today I'm going to work you over properly."

Se-hee's eyes switched into trainer mode.

"Your physique is solid, but your balance is a little lacking. Today we go lower body, core, and explosiveness."

She pointed not at the squat rack, but at the center of the mat.

"We're doing weighted squats, but not with a barbell. With a person. For building real-world muscle, an unstable load is best."

"A person?"

"Yes. Ji-eun? Sorry to ask, but would you let Mr. Min-ho hold you? Princess carry."

Min-ho scooped Ji-eun up with ease. A little over a hundred and ten pounds, she was nothing to a man with a Strength of 53.

One, two, three. He sat and rose so easily that Se-hee shook her head.

"This won't work. You're too light; it isn't a workout. Put her down."

Se-hee stepped in front of him in Ji-eun's place.

"I'll get on. I've got a lot of muscle, so I'm over one-fifty. I'll be pretty heavy."

"Please do, Coach."

Se-hee wrapped her legs around Min-ho's waist and hung on him, face to face. She was heavy, all right. More than a hundred and fifty pounds of packed muscle bore down on his body.

"All right, begin. Lower yourself slowly. Don't come up until I say up."

She locked her arms around his neck and gave the order.

"Down."

Min-ho bent his knees, slow. Each time he sank, gravity dragged Se-hee's heavy ass downward, and it pressed hard into his groin.

"More! Deeper! Don't stick your hips back!"

On the pretext of correcting his form, Se-hee crushed herself closer still.

A single layer of tights between them. Min-ho's hard cock pressed and pressed into the cleft of her ass and along the edge of her pussy.

"Hnnngh..."

A strange moan slipped out of Se-hee.

"Coach... the stimulation... is really landing."

"Of course it is... focus... on the muscle... nngh..."

Heat climbed through Min-ho's body, and sweat began to seep.

That smell...

Se-hee's face was buried against the nape of his neck, and her nostrils flared. A male scent, wound through the smell of sweat. The moment she breathed it in, the muscle of her inner thighs clenched on its own and locked harder around his waist.

"Mr. Min-ho... today of all days, your scent... haah..."

"Too much? Should we stop?"

"No! Keep going! Finish all twenty!"

She didn't want to climb down. She was drunk on the feel of his hardness rubbing her secret place, and on the pheromone scent stabbing up into her nose.

After twenty reps, Min-ho set her down.

The crotch of Se-hee's leggings was already soaked a deep, dark color.

"Hoo... now we go cardio and explosiveness."

Se-hee pointed from one end of the training room to the other.

"Shuttle runs. Sprint at full power until I blow the whistle. Don't bleed speed on the turns."

"Ready... go!"

The whistle split the air.

Min-ho kicked off the floor and exploded forward.

Agility 50. He was fast, no question. His feet ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠spent less time on the ground, and the turns came out smooth. The problem was the outfit. Nothing on him but brief-cut tights. Every time he sprinted all out, the enormous cock trapped inside them danced wildly up and down and side to side, dragged by its own momentum. The thin cloth hauled tight enough to tear, and that huge silhouette thrashed in the open.

"Oh my..."

Ji-eun clapped a hand over her mouth. Se-hee bit her lip, watching the spectacle.

The stimulation on Min-ho was just as brutal. With every stride, the friction and the vibration of the tights slammed the head of his cock. Pheromone-laced sweat, and the contact with Se-hee a moment ago, already had him half hard.

Ngh... I'm about to come.

Pleasure sharp enough that running alone felt like it would finish him. He clamped down and endured.

What he could not hold back was the clear precum. It burst out of him in a gush.

A wet squelch. Precum drenched the front of the tights, and with it the pheromone scent detonated. The room filled, wall to wall, with the smell of Min-ho.

"Stop!"

Se-hee shouted it, urgent. This was no longer an atmosphere in which anyone could keep exercising.

Min-ho came to a halt. His whole body gleamed with sweat, and the front of the tights was so soaked with precum that the skin showed through.

Se-hee came toward him as if spellbound.

"Mr. Min-ho... what is this?"

She pressed a finger hard into the wet front of the tights.

"Guess I... worked out a little too hard."

"Haah... that smell... is seriously dangerous."

Se-hee dropped to her knees. The reason was already gone from her eyes.

"I can't hold it anymore. Let's do a different workout."

"A different workout?"

Se-hee breathed hot against the wet tights and looked up at him.

"Sex. Sex is exercise too, isn't it? The ultimate full-body workout. Cardio and strength training, both."

"Coach, are you serious?"

"Yes. As a professional... I'm prescribing it."

Without a moment's hesitation she grabbed the tights and yanked them down. They snapped free, and a massive, vein-ridged weapon—smeared with sweat and precum—sprang out in front of her face.

"Haah... this thing... I'm gonna lose my mind..."

Se-hee opened wide like a starving beast and swallowed him.

"Schlrp! Mmph! Nnn...!"

"Nngh... Coach... that tongue..."

Fresh off the sprint, Min-ho's senses were razor-sharp, and the moan tore out of him. Ji-eun couldn't endure it either. She came in close, wrapped herself against his back, and mouthed at the nape of his neck.

"Min-ho, me too... put it in me too..."

And then the threesome—gym sex in earnest—began.

Min-ho bent Se-hee face-down over the bench-press bench. The apple hips he had coveted for so long were right in front of him. He peeled the tight leggings away, and the springy, elastic ass bounced free, taut and jiggling.

"Haah... this ass... I've really been wanting to fuck it."

His palm cracked down across Se-hee's ass. A sharp, meaty smack, and the flesh rippled.

"Aahng! I like it! Hit me more!"

"Coach, today it's the back."

Min-ho put his mouth to her anus without hesitation.

"Hieek!"

Se-hee's body jolted. His tongue licked the puckered hole rough and stabbed in.

"Schlrp... lick..."

"Aaaahng! Mr. Min-ho! That's... my asshole... haaahn!"

Once he had her thoroughly wet, he set the huge pillar of his cock against her.

"Going in. Relax."

He drove in.

"Kyaaaah!"

Se-hee, a hundred and fifty pounds of muscular trainer, screamed. A heavy, alien fullness dug all the way into the depths of her belly.

"Wow... the grip... must be the muscle. It's different."

He started to move his hips, openly impressed. In front of him, Ji-eun rained kisses over his mouth and helped the rhythm of his body along. Se-hee turned her head, looked back at him, and shouted.

"Mr. Min-ho! Don't let your form break! Deeper! Harder! One hundred piston reps—go!"

Had the ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠trainer's instinct come back to life, or did she simply want a bigger stimulus?

"Understood, Coach!"

Min-ho seized her pelvis and drove the pace up.

"One! Nngh! Two! Ahng! Three!"

Se-hee shook her ass and counted in time with him. Min-ho's Strength of 53, his Stamina of 55, and his Virility of 70 all broke loose at once. Slap, slap—the sound of flesh on flesh filled the training room. He ravaged her ass and feasted on Ji-eun's breasts in the same breath.

"Noona, noona, come here too."

Still buried in Se-hee, he folded his upper body down and worked his tongue between Ji-eun's legs.

"Haaht! Min-ho! Your tongue... it's so good!"

The three of them rolled like animals, a mess of sweat, saliva, and slick. The pheromone scent whipped still harder at the desire racing them toward climax.

"Ninety-eight... ninety-nine... aaahng! One hundred! Mr. Min-ho! Come! Come inside!"

Se-hee cried it out like a shriek. Min-ho let go.

It burst into her in heavy spurts. Hot semen poured like lava into the depths of Se-hee's ass.

"Aaaaaah! It's hot! My stomach... my stomach feels like it's going to burst!"

Se-hee clutched the bench, shuddering all over, and hit her peak. Ji-eun, too, squirted under his tongue and collapsed as if she had fainted.

A long while later.

The three of them lay sprawled on the floor. From Se-hee's ass, cloudy white fluid trickled in a slow stream.

"Haah... we really... got a proper workout in..."

Se-hee looked up at Min-ho with unfocused eyes. Sweat-soaked, her face looked far more vivid, and younger. The beautifying effect of semen and pheromone.

"Mr. Min-ho... I don't think I can do legs tomorrow... my legs won't move..."

"Then should I come tomorrow for upper body?"

At the joke, Se-hee let out a short laugh and looked over at Ji-eun, lying beside her.

"Come to think of it, Manager, your surname is Kang, right? I'm a Kang too."

"Really? Kang Ji-eun."

"I'm Kang Se-hee. Oh my, I wonder if we're even the same line."

Ji-eun smiled and brushed Se-hee's sweat-damp hair back from her face.

"What does that matter? What matters is that from today, we're not strangers. I'll be your unnie. Se-hee, your stamina's good, and I like you."

"I like that, unnie. Let's form the Kang Sisters. A dedicated trainer team, just for Min-ho."

Se-hee took Ji-eun's hand and laughed, big and open. Then the look she turned on Min-ho went thick and clinging.

"And Min-ho... I know it for certain today. I think I'm addicted to you."

"Addicted?"

"Yes. This scent, this muscle, and that incredible thing of yours on top of it... I don't think I could bother with another man now. They'd be boring."

Se-hee nuzzled her face into his chest and whispered.

"Let's do it often from now on. Not just working out... Health Sex."

"Health Sex?"

Min-ho and Ji-eun asked it at the same time.

"Yeah. Gym and sex smashed together. The ultimate workout—cardio and strength at the same time, and you get the pleasure too. Well? Killer name, right?"

"Wow... look at that naming sense. Health Sex. Rolls right off the tongue."

Ji-eun clapped, openly impressed. Min-ho laughed too, low and hearty, and nodded.

"I like it. Health Sex. From now on, the care of this body is in the Kang Sisters' hands—Health Sex, all the way."

"Just leave it to us. We'll milk every last drop of your essence, Mr. Min-ho."

Se-hee and Ji-eun caught him by the arms, one on each side.

Agility 50 achieved, the pheromone's effect confirmed, and a scorching Health Sex party with the Kang Sisters, formed right there in the gym. Min-ho's kingdom was only growing more solid, thick with the smell of sweat.