By Zephyria 
Because his eyes were closed, his aim was slightly off, and he ended up kissing the corner of the mouth rather than the lips, but even that was enough to make Jeil Heon draw a sharp breath.
“Th-this, let’s cancel this and do it aga— mnh, ah.”
A large hand cupped both cheeks, and their lips met. It wasn’t a misplaced kiss like the previous one, but a kiss where wet flesh pushed in roughly. The friction of skin against skin was more urgent than usual. There was a distant, overwhelming longing, as if he were about to be swallowed by the mouth that lunged forward to bite and chew greedily.
He tried to respond to the soft tongue pushing in without a shred of restraint, but simply keeping up was overwhelming, and only pitiful moans escaped him. It felt as if an invisible hand made of pure heat was hotly sweeping down from his lower back to his buttocks.
As Yoo Jiha’s strength failed and his knees kept buckling, Jeil Heon held his waist and stripped off his clothes with rough hands. Staggering backward, the blue shirt came off, then the T-shirt. The moment the clothes were pulled over his head, their lips, which had parted for a second, clung together obsessively, rubbing their membranes. By the time the man’s large hand gripped his buttocks, Jiha’s retreating knees hit something. Gasping for air, Yoo Jiha collapsed onto the bed.
“Haah, haah… ngh, hng.”
As he panted for breath, a tongue was dense, sucking on his parted lips and licking his saliva-drenched chin. Passing over the rounded jawline, the lips swept down the neck and Adam’s apple, leaving marks by nibbling on the collarbone. Without even a moment to feel embarrassed that his clothes had been stripped away, Yoo Jiha groaned at the unfamiliar yet longed-for stimulation.
Jeil Heon sucked so hard on the hollow of the bone that a stinging sensation rose, and he whispered as he pressed his lips against the reddened, swollen area.
“Did your previous partner treat you well?”
“Right now, why… ngh.”
“Hmm? Jiha.”
This time, Jeil Heon rubbed the bridge of his nose against the nape of the neck. Just as the hot breath touched the tender skin, a sharp pain suddenly shot through.
“Hk! Hng, ah…”
He didn’t even have to look to know. Tooth marks must have been carved into his skin along the man’s dental line. Jeil Heon licked the tooth marks he had made with a wide stroke of his tongue and then sank his teeth in again. It hurt enough to make his waist flinch, but he loved it. Without even realizing that he was rubbing his groin against the man’s thigh as his knees were spread wide, Yoo Jiha felt his mind spinning.
If he were asked if his previous partner treated him well, then yes, they did. They showed him homework, fed him tteokbokki, and took his side when he fought with other kids…
“V-very much so.”
“Why did you break up?”
“I was dumped…”
Jeil Heon let out a low breath and overlapped their lips once more. The movement, digging into the membranes even more obsessively than before, was sweet enough to make his lips ache.
“…No matter how many times I experience it, jealousy really feels like such an ugly emotion. I’d never felt anything like this until I met you.”
“…”
“I hate that person who dumped you so much I shudder, but on the other hand, I’m grateful. If you were still dating, you wouldn’t have taken me in, would you?”
Instead of revealing that the ex-partner he was jealous of was a nine-year-old elementary school student, Yoo Jiha whispered sincerely.
“Even if I had married someone else, I would have had an affair with you, Mister.”
In the darkness, the corners of Jeil Heon’s mouth curled up slightly.
“That’s incredibly arousing. Those words.”
“You’re a bit of a pervert…”
“So, do you hate it?”
Jiha had already realized he was a pervert when he had fallen asleep after pleasuring himself. Yoo Jiha shook his head gently, and his last remaining piece of underwear was stripped off and fell to the floor.
Though he had been exercising lately following Jeil Heon’s lead, the man’s lips slid down his still soft thighs. As the man’s face descended deeper, Jiha’s face flushed with embarrassment at the sight of his legs gradually spreading. If the lights had been bright, the evidence of the arousal the man had created would have been clearly visible.
He was feeling relieved in the bedroom, which was so dark he could barely see. Then, his thighs were grabbed and lifted, and the wet sensation of lips touched his buttocks. Red tooth marks were dotted across his pale cheeks.
Yoo Jiha, who had been moaning while faintly twisting his waist, realized the intent of this act only after Jeil Heon firmly gripped and spread both buttocks. Jiha gasped in shock as the tip of a pointed tongue scraped long across the perineum and circled the hole where the dense folds gathered.
“Wait, wait a second…! There, ah, no, ngh!”
“It’ll hurt a lot if you don’t relax.”
Following the voice coming from his lips, humid breath reached the hole directly. The hole felt ticklish, and his lower abdomen tightened. His mind went blank. He had heard bits and pieces about how men have sex, but still, with a tongue… how could he do that there…
As if knowing Yoo Jiha’s confusion and shame, Jeil Heon soothed him gently.
“It’s not dirty at all. There isn’t a single spot on your body that isn’t beautiful.”
“S-still…”
“If you really hate it, I’ll find another way.”
The flesh licked the hole again. At the vivid sensation of the lips and tongue, Yoo Jiha’s waist trembled. His reason screamed that he hated it and should push him away, but the words wouldn’t come out, as if caught on the tip of a tongue. He loved the way the man’s hands licked and caressed even the most private areas without hesitation, saying there wasn’t a spot that wasn’t beautiful.
As the tension in his taut thighs relaxed slightly, Jeil Heon buried his face completely in the buttocks. The tongue pressed and moistened the top of the hole, and the buttocks were spread wide. The tongue, drenched in saliva, slid wetly inside. At the unfamiliar foreign sensation surging from below, Yoo Jiha covered his mouth, unable to even let out a proper moan.
With his face pressed so close that the bridge of his nose rubbed against the perineum, and his tongue moving in and out deep enough to make a squelching sound, his lower abdomen flinched and tightened. Yoo Jiha thought he was losing his mind. How could he be aroused by having his backside licked, of all places?
Fingers slowly entered the drenched hole. The tension he felt at the foreign object digging deeper than the tongue was short-lived.
“Haa… ah, nng…”
As the fingers moved back and forth, pressing against the inner walls slick with saliva, soft, panting moans escaped. Each time, the drenched, melting hole opened up with difficulty.
The sensation coloring his body from below up to his waist was strangely tantalizing. If he felt this good with just fingers and a tongue, how would it feel to actually take his member? Whatever he imagined now, it would surely be more than that. His breathing grew more labored. He wanted more. He wanted him. He wanted the man to thrust deep into his belly and stain him entirely with desire.
“Hng, Mister, it’s… it’s ready now…”
Jeil Heon, who had not stopped using his tongue while relaxing the area with his fingers, finally pulled his face away and laughed lowly.
“How do you know?”
“It’s my body, haah, so I know.”
“Really?”
The fingers rubbing the inner walls slid out smoothly, and then his wrist was grabbed. His hand was led to the lower abdomen, where it touched something hard and hot. For a moment, Yoo Jiha forgot to breathe as he felt it. An arm? Was it a forearm? Did he touch a forearm by mistake? Did this man have three arms? There, more terrifyingly arousing than the memories of that night etched into his palm, was something.
His Adam’s apple bobbed with tension. He had misspoke. A belated wave of regret washed over him. Could he just cut off about two knuckles’ worth and then do it? Probably not…
But he couldn’t back down here. If he backed down, he lost. Yoo Jiha answered resolutely.
“It’s… it’s small. It’s no big deal.”
“It is a bit on the smaller side, isn’t it?”
Jeil Heon let out a laugh and positioned himself between his legs. The bulging, aroused glans rubbed against the hole. Unlike the heat of the organ that seemed ready to tear through his body and insert itself, the whispering voice was quite tender.
“Be sure to tell me if it’s too much. I’ll stop immediately.”
Though he nodded in tension, Yoo Jiha vowed that he would never tell him to stop. Given the sticky gaze looking down at him, as if he were so aroused he wanted to devour him, if he told him to stop, who knew when the day would come for him to try again until the end, given his personality. Even if his body were split apart by that forearm—no, that weapon—he would see this through tonight.
Finally, the thick glans began to push inside.