By Zephyria 
“Ah, hah. Ha.”
His tongue flickered in an unseen place, scraping the tip of the nipple held in his mouth. Choi Hong-seo writhed, not knowing what to do with himself. He stole a glance up at the man who still had his nipple in his mouth. Eyes completely consumed by arousal glistened beneath eyelids that had grown looser than usual.
While maintaining eye contact, his upper body pulled away.
Because he had sucked not only the nipple but widely across the areola and the surrounding area, the entire chest was glistening. Three or four long strands of saliva stretched between the reddened, erect nipple and his tongue. The visual stimulation was too intense.
“Heeu, hng..”
Covering his face with one hand, Choi Hong-seo squeezed his eyes shut.
“You’re so wet. Did you already come once?”
It was a voice that instilled an ominous feeling.
When he looked up, Lee Hae-sung—who had retrieved Choi Hong-seo’s briefs from where they were caught around his ankle—was staring seriously at the inside of the rolled-up underwear. The inside of the white briefs, worn to match the color of his pants, was translucently soaked where they touched the genitals.
“Hut! G-give them back!”
He lunged to snatch them away, but Hae-sung didn’t let go. It was too simple to evade Choi Hong-seo, who couldn’t put proper strength into his movements because his chest had been stimulated for so long. Hae-sung even went as far as to cover his nose and mouth with the soft piece of white cotton and take a deep, long breath.
“You’re… crazy! Truly crazy! Ah… ah-eu, hng.”
“Just from this?”
As Choi Hong-seo tried to lunge again, he was grabbed from below. While kneading the penis and testicles that were sticky with pre-cum, Hae-sung did not move the underwear away from his lower face.
“The smell here. It makes me strange.”
“I… I hate it… it’s dirty..”
Due to the pleasure, his thighs closed instinctively, tightening around the hand touching his genitals. Simultaneously, his upper body kept collapsing.
“It’s the secret scent of the person I love. How can you call it dirty?”
He wore an aggrieved expression, as if his pure devotion had been insulted.
“I almost want to collect it.”
“…Pervert.”
This time, he smirked. As if he had just received a compliment.
“Weren’t you the one who wanted to see a perverted Lee Hae-sung?”
He leaned down toward Choi Hong-seo’s face, which had turned bright red like a ripe fruit. Setting the underwear aside, he blocked Choi Hong-seo’s lips with his own. With the same strong suction he had used on the nipples, he began to devour Choi Hong-seo’s lips. My lips are going to be swollen tomorrow…
“Mmm… mmm. Hup..”
Seen up close, his eyes were already abnormal, shimmering entirely with lust. Bloodshot and blinking slower than usual, yet the gaze craving Choi Hong-seo within them was brimming with intensity. He’s this excited because of me… Thinking that made the passion inside Choi Hong-seo grow even deeper.
“Hup! Ng..”
Gripping both sides of Choi Hong-seo’s bare buttocks firmly in his hands and pulling him close, he lifted Choi Hong-seo up in that state. Supporting Choi Hong-seo’s weight with one arm, he fumbled toward a shelf where several towels were neatly folded. His tongue, which tickled the back of the upper teeth, was hotter than usual. Grabbing a large bath towel, he stepped into the shower booth.
Leaving the booth door open, he spread the towel over the marble ledge where one could sit and set Choi Hong-seo down. Whether he realized it or not, the act of laying down a towel showed he wasn’t being entirely selfish; it wasn’t bad.
Hae-sung’s waistline was at Choi Hong-seo’s eye level.
The body hair extending around the navel grew thicker as it went down, disappearing beneath the belt. It brought to mind the pubic hair protecting the area around his genitals.
Click, click. Right before his eyes, he began to undo the buckle of his belt.
The front of his pants was tight, as if the zipper and hook were about to burst. Even after undoing the belt and opening the hook, the zipper didn’t go down easily.
“I smelled something so good, I got too hard,” he said, laughing low in a cracked voice. It was a laugh laced with cold sweat from the effort of suppressing a powerful sexual urge.
Struggling to push the penis inside the drawers to one side, he finally managed to pull the zipper all the way down. He pushed his hand deep into the V-shaped opening of the pants and let them drop to the floor.
Black boxer-style drawers clung tightly to his firm thighs. Through the single layer of thin cotton, the shape of the erect penis was clearly visible.
The pouch of the drawers, designed to house the genitals, was far too narrow for him. His erect member had escaped the pouch and was twitching, jutting out crookedly toward his left pelvis. It was so full of energy that it looked as if it might burst through the sturdy waistband at any moment.
Despite being so erect, he didn’t pant or scramble for a hole immediately. As if the pants were merely in the way, he kicked them out of the booth with his toes and even gave a smirk.
Pulling down the waistband of the boxers with his thumb, his bare feet took a step closer. Thump. The penis, which had been trapped all this time, bounced with its own weight as if finally liberated. Even in a semi-erect state, his member already possessed considerable thickness, length, and weight. If this had been their first experience, he wouldn’t have even known it was only half-erect.
Lee Hae-sung slid his left hand slightly between his groin. Gripping the heavy scrotum, he rested the penis on the palm of his right hand as if supporting it from below.
“Do you like this that much?”
“W-what do you mean..”
“You’re staring at it like you’ve lost your soul.”
Claiming he hadn’t, he turned his head away. Hae-sung’s hand reached out and broadly cupped the area under Choi Hong-seo’s chin, lifting it slightly to force eye contact.
Squelch, squelch. The sound of him stroking the shaft of his penis to make it even harder reached his ears. Just hearing that friction made his backside twitch embarrassingly. He pulled at the hem of his t-shirt, trying to hide his own erect genitals. Fellatio? Is he going to make me do fellatio?
“You have to lift your t-shirt.”
While still cupping his chin, he tickled the skin with his thumb. Perhaps because he had teased him earlier, calling it “breasts” instead of a “chest,” the t-shirt wouldn’t go any higher than the stomach.
“Higher. Like before.”
He stepped in and lifted Choi Hong-seo’s elbows high. Once it was raised to the armpits as desired, a heavy, hot breath flowed from deep in his throat.
Meanwhile, stroking the penis he had made even harder, he moved closer.
“This.”
“……”
“I’m going to rub this against Hong-seo’s chest.”
Unconsciously, he looked up at Lee Hae-sung’s face. His eyes were red, like someone intoxicated. That was how excited he was.
The glans was approaching the nipples, which were glistening with saliva.
“Ha-eu, ha, n-no.. th-there, it feels strange..”
Though he shook his head saying it was strange, Choi Hong-seo couldn’t let go of the gripped t-shirt, nor could he turn his body to refuse. As if his limbs were tied, he only shook his head while kicking his heels against the ledge.
Almost every day, Hae-sung had been obsessed with his chest without ever tiring of it. Even when they weren’t having sex, he would hug him from behind and touch his chest under his clothes. It was impossible for his body not to change, and impossible for him not to become sensitive. Beyond just being sensitive, there had been times when Choi Hong-seo reached ejaculation simply through nipple stimulation.
If he rubbed his penis directly against such a place…
Just the imagination caused pre-cum to surge from between Choi Hong-seo’s legs. He tried to rub and close his thighs to hide it somehow. But it was useless. As Hae-sung stepped close to the marble ledge, he slid his calf between Choi Hong-seo’s knees, forcing his legs open.
“Ha-eu, hng, ah-eu.. eu..!”
The glans finally touched the protruding nipple. As if testing, it lightly brushed past at first. That alone sent a jolt through the tip of the nipple. The mere fact that it was his genitals, not a finger or a tongue, touching the nipple was enough.
After a few such light taps, he pressed the glans deep, burying the nipple completely. Hmm.. Lee Hae-sung let out a long, heavy groan above him.
“Every time I sucked them with my mouth, I always wondered.”
Press, press. The glans retreated briefly and then pressed the nipple again and again. Like when inserting below.
“If I scrape my cock with these soft little beads, I wonder… what it would feel like.”
He spoke as if discussing a chemical reaction—like what happens when iodine solution is dropped on starch. Aside from being slightly out of breath, his tone was flat, contrasting with the lewd content of his words.
Press, press, press.
“It’s a kind of… intellectual… curiosity.”
He pushed his penis in staccato bursts, to the point where the nipple was crushed and buried beneath the glans, becoming invisible.
Then, he slid down, tracing a line down the chest.
He outlined the contours of the chest muscles that sat shallowly over the sternum. While not as thick and bulky as Lee Hae-sung’s, the body he had built under professional management was composed of aesthetically pleasing muscles that weren’t overly masculine. There was a proper cleavage between the two breasts, and a clear boundary existed between the chest and the abdominals.
Lee Hae-sung traced that boundary, the part where the chest muscles began to rise, with his glans.
Then, tap, tap, he scraped upward over the skin as if flicking the chest. Every time he pushed up along the shallow muscle and bounced off, the penis swayed, unable to withstand its own weight.
“Eut, hng.”
Onto Choi Hong-seo’s chest, onto the back of the hand gripping the t-shirt, onto his chin, and onto his own lower belly and chest. Pre-cum splattered everywhere. The male organ, glistening and dripping with bodily fluids, looked beyond sensual—it looked vulgar. The size itself was already excessive. It looked like a frame from a pornographic film shot explicitly to stimulate primal sexual desire.
With that very cock, Lee Hae-sung rubbed around Choi Hong-seo’s areola, spreading the pre-cum wide. Using the tip of the glans, which tapered sharply toward the front to ease insertion, he flicked the nipple up, tap, tap.
“Haa, ha-eu, hng. Ah-euu.. ng.”
Choi Hong-seo, twisting the t-shirt—which had been pushed up to his collarbones—tightly with both hands, trembled in his splayed legs.
The rounded, red piece of flesh tilted this way and that, rubbed by the glans. Then, once in a while, the penis thrust deep, covering the nipple completely. The glans, hard on the inside but smooth and soft on the outside, pressed firmly against the nipple and applied circular pressure.
Then, for a moment, the penis slipped, unable to maintain its grip, and slid up toward the upper chest.
Whew, whew… Controlling his breathing deeply as if performing weight training, Lee Hae-sung stubbornly repeated the act.
“Hng. Hng.. ha-eu-hng, hng.. hng-eut..”
The sensation of the genitals grazing past the nipple felt like it would drive him crazy. His hips writhed. He looked up at him with a tearful face. Hae-sung used his right hand, the one not holding his penis, to wipe Choi Hong-seo’s cheek. The expression on Lee Hae-sung’s face as he rubbed away the pre-cum splattered on the face looked almost painful, as if he were struggling to endure his own arousal.