By Zephyria 
“Haa-ugh, hng!”
“Do you prefer it when I lick you like this? Your reaction is great.”
“Be a little quiet… agh!”
Unfortunately, Tae-un had learned an efficient way to silence Kim Si-baek. Before he could utter a word, his wet genitals were swallowed again into the moist interior of the mouth.
The feeling of the stiffly erect member scraping the roof of his mouth and pushing all the way to the soft palate made his head spin. The stimulation was far too vivid. If his vision hadn’t been blocked, he would have been able to see Tae-un with his face buried between his legs, sucking him off. The mere thought of the sight was embarrassing, yet at the same time, there was a lingering sense of regret that he couldn’t see it.
Tae-un pursed his lips and cheeks as if sucking on a lollipop, tightening and pulling on the member, sweetly swallowing the pre-cum that flowed from the glans, mixed with saliva. He wanted to tell him that he shouldn’t swallow such things, but all that came out of his mouth were shallow moans. He almost wanted to reach a climax quickly just to end it, but his limp, melting body demanded more pleasure.
Tae-un gripped his twitching pelvis and moved his mouth to the side. The sensation of the tongue moving along the saliva that drenched the shaft sent a thrilling jolt through him. Only then did Kim Si-baek realize that his buttocks, stripped of their underwear, were exposed to the air. And it wasn’t just the buttocks that were exposed.
“Hng! Huuh, ng…”
The sharp tip of the tongue tickled his perineum. The sensation of the thick saliva flowing past the perineum and down into the crease of his buttocks was vivid. The hole, which had been lying dormant, twitched. His fingers, gripping Tae-un’s shoulders, tightened instinctively.
If Tae-un were to lick further down and try to open his hole right now, would he actually be able to firmly refuse him? The question, which he couldn’t answer with certainty, clouded his mind, and his spine stiffened.
“Mm.”
A low groan echoed from Tae-un, whose expression was unreadable, leaving Kim Si-baek unaware of what he was thinking. He could vividly feel Tae-un’s fingers slowly massaging the tense muscles of his pelvis, following the grain of his skin.
And then, following a light chuckle, a gentle breath tickled his perineum.
“Don’t be too tense. I won’t do anything that would make you recoil from me, Hyung.”
At those words, the tension in his spine vanished. Kim Si-baek moistened his lips with a dry swallow, trying his best to respond calmly.
“You’re already doing it, aren’t you?”
“While you’re enjoying it.”
Despite the fact that he was unabashedly sucking someone else’s genitals, Tae-un let out a laugh as innocent as a fresh-faced boy, and Kim Si-baek felt him move downward again. Before the saliva on his exposed skin could even cool, lips enveloped the glans with a wet chup sound. His upper body jolted as if anticipating the promised pleasure.
Tae-un, who had been stimulating him by wrapping his palm around the shaft and rolling it down to the testicles, moved his face. As if the licking from before had been a mere joke, the member was sucked deep into his mouth. Past the burning oral cavity, into the depths of the throat, where the suction was hot and strong. The heat from the depths transferred to him, spreading like a wildfire.
He sucked him in deep, pulling hard all the way to the root, and moved his face rapidly, pressing his tongue against the protruding veins. In his blackened vision, pleasure sparked white like fireworks. Even the stimulation of teeth grazing the foreskin, as if to chew and swallow it, became a sensation rather than pain, pressing down on his nerves and sending blood rushing through his entire body.
“Ha-hng, ugh, ugh, ng!”
If Kim Si-baek’s reason had been any thinner, he would have grabbed Tae-un’s face with both hands and frantically thrust his hips. His hands were already clutching the hair that bobbed up and down between his legs, and the handkerchief had long since slipped from his flailing wrists.
Tae-un pushed open his thighs, which were instinctively curling shut, and lifted them higher. The back of his knees, naturally bent, rested on Tae-un’s shoulders. Without even realizing that one of his legs was spread wide open, Kim Si-baek choked back a ragged moan. The sound of his completely stripped pants finally falling to the floor was drowned out by the wet, slapping sounds of saliva inside the mouth.
Ah, the sound. Yes, that sound. The pre-cum still streaming from the glans and the saliva pooled under the tongue were mixing and echoing. Inside Tae-un’s mouth, which his member was ravaging. Though he couldn’t see it, the pale lips must be stretched wide, taking in the fully erect member. Saliva would be flowing through that gap, making a squelching sound. Just like the sound drumming against his eardrums.
Suddenly, Kim Si-baek became curious about Tae-un’s expression, which he thought he could imagine. In that moment, his lower half tightened, and his hips twitched. It was a familiar feeling. The climax was approaching.
“Ha-hng, Un-ah… I think I’m going to, quickly pu… ngh, ha-ugh!”
He tried to push Tae-un away in urgency, but the other didn’t budge, instead swallowing the member even more deeply. His heaving buttocks were gripped firmly.
“You, you… what are you, hng! Agh! Ah!”
As if telling him to ejaculate quickly, Tae-un tightened his throat, pressing against the glans. At the same time a dizzying stimulation pierced through him, his mind went blank, and a wave of pleasure hit as his lower half was suddenly liberated. As he floundered in the wave-like sensation of the climax, the sound of Tae-un swallowing the expelled semen echoed exceptionally loud in his ears.
“…….”
Lying face down on the sofa with his face covered by his hands, Kim Si-baek fell into a bottomless pit of self-loathing. It wasn’t enough that he came in the mouth of the younger brother he had raised since the age of five; he had actually, actually, actually… done that in there.
Moreover, his brother ate it. Is this even human? How can a human commit such a shameless act? Is he crazy? Shouldn’t he just dive face-first into a basin of water and die? Shouldn’t he open the window and jump out right now?
Regardless of his turmoil, Tae-un’s footsteps sounded cheerful as he cleaned up. After ventilating the room and wiping the sofa and his hands with wet wipes, Tae-un licked his lips and flopped down on top of him.
“Oof.”
As 0.1 tons of weight pressed down on him, a groan escaped as his chest was squeezed. When they overlapped on the bed, Tae-un supported himself with his arms, so he didn’t notice it much, but he really was heavy. As if simply lying on him wasn’t enough, Tae-un pressed wet kisses to the nape of Kim Si-baek’s neck and his ears. Since the sofa wasn’t very long, their long legs, sticking out past the armrests, became entangled.
Crushed by the massive weight, Kim Si-baek panted softly under the pressure, feeling as if he might suffocate. Of course, that was just a figure of speech; if he put his mind to it, he could lift Tae-un and push him aside. Still, Kim Si-baek remained pinned. He didn’t have the face to face the world.
“Hyung. Why are you suddenly like this?”
The reason he asked, despite knowing the answer, was obvious. It was a trick to make him say out loud what he had just done with his mouth.
“I came in your mouth. And I even made you eat it.”
“…….”
Not only did he fall for the trick, but he used such explicit expressions that Tae-un actually flinched and shut his mouth. After catching his breath for a moment, the voice that returned was extremely cautious.
“……Was it that shocking?”
“It’s more shocking than when I first saw you at thirty-five.”
“Uh, mm… I sucked it because I liked it, and I swallowed it because I liked it…”
“Even if you clung to me saying you liked it, as the elder and your Hyung, I should have drawn a firm line and said no is no.”
But what was that pleasure that made him come in a mouth? How can a human be like this?
“Well, even if Hyung had tried to stop me, would I have listened?”
“…….”
That was certainly true.
When Kim Si-baek turned his head and glared slightly from behind his palm, a shower of kisses poured over him, as if Tae-un wouldn’t miss the opportunity. It was unbelievable that the lips that had been wetly sucking and licking his member just moments ago were now giving such dainty kisses.
Tae-un slid his arm beneath Kim Si-baek’s abdomen and shifted his body. He didn’t know Tae-un’s exact weight, but combined, the two of them were over a hundred kilograms, so it was roughly 0.2 tons. The sofa creaked as if it might collapse under the weight. He wished it would just collapse, but Tae-un managed to turn his body and hug Kim Si-baek from the side.
“Don’t think too seriously about it. It’s about time we move on to the next stage. Now that you’ve mastered the handjob partner phase, it’s time to become a blowjob partner.”
Tae-un, who had been slapped on the thigh for his nonsense, presented a perfect solution.
“Then there’s only one way. Hyung, you can suck mine too.”