Chapter Text
"Fuck, Appa, don't stop... right there, please."
The desperate, broken whisper was hot against Jungkook's ear. His son's-no, his Tae's-body was arched beneath him on the living room floor, a masterpiece of trembling, sweat-slicked skin bathed in the late afternoon sun filtering through the blinds. Tae's slender fingers were digging into the thick muscles of Jungkook's back, blunt nails leaving faint, red trails of pure possession.
Jungkook drove into him-her-deeper, the wet, tight heat of Tae's cunt milking his cock with every punishing thrust. The slick sound of their joining was obscenely loud in the quiet house, a rhythm only broken by their ragged breaths and the soft, wet smack of skin on skin.
"You feel that, baby?" Jungkook growled, his voice thick with a lust that had long since burned away any semblance of paternal restraint. He shifted his angle, grinding the base of his cock against Tae's swollen clit with the next forward surge.
Tae's head snapped back, a choked cry tearing from his throat. His-her-legs, wrapped tightly around Jungkook's waist, locked like a vice. "Y-yes... God, yes, Appa, I feel all of you. You're so deep."
It hadn't started here, on the floor. It had started hours ago, a slow, simmering tension that had boiled over the moment Jungkook's wife, Soojin, had left for her weekend pottery retreat.
Tae was eighteen. Just turned. Jungkook had made sure of that, had counted the days, a coiled spring of forbidden desire waiting for the calendar to grant a sick, societal permission it didn't need. The reality of Tae's body-the soft curves that had blossomed where he'd expected hardness, the secret, perfect fold of flesh between his legs that Jungkook had discovered not through some clinical
revelation, but in a haze of confused, overwhelming lust when Tae was sixteen-had never been a problem. It had only ever been a detail. A devastatingly erotic one.
Jungkook had discovered not through some clinical revelation, but in a haze of confused, overwhelming lust when Tae was sixteen-had never been a problem. It had only ever been a detail. A devastatingly erotic one.
Their love was the problem. Or, rather, its sheer, volcanic magnitude. It wasn't fatherly. It wasn't filial. It was this. Consuming. All-encompassing. A need so profound it rewired morality.
This afternoon, it had begun with a look. Tae, fresh from a shower, padding into the kitchen in just a thin t-shirt and boxers, hair damp. Jungkook had been at the counter, making coffee. Their eyes had met. Something silent and electric had passed between them-a question, an answer. Tae had walked over, not to the fridge, but to him. Had pressed his body against Jungkook's side, his head resting on his father's shoulder.
"She's gone until Sunday night," Tae had murmured, his voice a low vibration against Jungkook's arm.
That was all it took. Jungkook had turned, his hands coming up to frame Tae's face, his thumbs stroking the high cheekbones. "I know."
The first kiss was always like coming home to a place you weren't supposed to exist. Soft, at first. Testing. Then Tae's lips parted with a sigh, and Jungkook's tongue swept in, tasting mint and the unique, sweet flavor that was purely Tae. His hands slid down, over the t-shirt, palms cupping the small, perfect breasts underneath, feeling the nipples harden instantly against his touch. Tae moaned into his mouth, his own hands fisting in Jungkook's shirt.
They'd stumbled to the living room, shedding clothes in a frantic, clumsy trail. Jungkook had laid Tae down on the plush rug, worshipping every inch of exposed skin with his mouth-the hollow of his throat, the pink peaks of his breasts, the flat plane of his stomach. He'd hooked his fingers into the waistband of Tae's boxers and drawn them down slowly, revealing the thatch of dark hair and the glistening, pink folds beneath.
"Appa..." Tae had whimpered, spreading his legs in shameless invitation.
Jungkook hadn't used his fingers first. He'd buried his face between Tae's thighs, his tongue delving into that intoxicating heat, licking and sucking until Tae was sobbing, his hips bucking off the floor, his hands tangled in Jungkook's hair. He'd made him come once like that, a sharp, keening cry as Tae's cunt clenched around nothing, soaking Jungkook's chin.
And then, only then, when Tae was boneless and pliant, had Jungkook risen up, positioned himself at that dripping entrance, and pushed inside in one long, smooth, utterly claiming stroke.
Now, he was fucking his son with a relentless, deep pace, each withdrawal almost complete before he slammed back in, hilt-deep. The pleasure was a white-hot wire from the base of his spine to the crown of his head. He watched Tae's face, a mask of ecstasy-eyes screwed shut, mouth open in a silent 'O', a flush spreading from his chest to his neck.
"Look at me," Jungkook commanded, his voice rough.
Tae's eyes fluttered open, glassy with tears of pleasure. The love and raw hunger in that gaze was enough to make Jungkook's heart stutter even as his hips pistoned faster.
"Whose are you?" Jungkook grunted, gripping Tae's hip so hard he knew there would be bruises.
"Yours, Appa. Only yours. Always."
The words, the submission, the tight, wet clutch of Tae's body pushed Jungkook to the edge. He could feel his balls drawing up, the pressure coiling unbearably. Beneath him, Tae's breathing hitched, becoming sharp, frantic pants. His inner muscles began to flutter and spasm around Jungkook's length, a telltale sign.
"Come with me," Jungkook breathed, leaning down to capture Tae's lips in a messy, open-mouthed kiss. "Come on my cock, baby. Let me feel you."
It was the permission Tae needed. His body bowed off the floor, back arched in a perfect, tense curve as a broken, shuddering cry was swallowed by Jungkook's mouth. His cunt convulsed in a series of intense, rhythmic pulses, the sensation of it milking Jungkook's dick triggering his own climax.
With a final, deep thrust, Jungkook buried himself as far as he could go and let go. Hot pulses of cum erupted inside Tae, filling him, marking him in the most primal way possible. He groaned, long and low, into the curve of Tae's neck as the waves of pleasure crashed over him, leaving him trembling and spent.
For long moments, they stayed locked together, Jungkook's weight partially on Tae, both of them panting, slick with sweat. Jungkook nuzzled Tae's neck, placing a soft kiss there.
"We can't stay here," Tae whispered, his voice hoarse. "She could come back early."
Jungkook knew it was a remote chance, but the risk was the spice. It always was. He slowly, reluctantly, pulled out, watching his release leak from Tae's used, reddened entrance. The sight made his spent cock give a weak twitch.
"Where then?" he murmured, his hand drifting down to stroke Tae's inner thigh.