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The rooftop hot tub was paradise at midnight.
Seungmin had discovered the perfect configuration—Jeongin in his lap, facing away, impaled on his cock in a reverse sitting position that let them both watch the city lights while remaining completely joined. The water was chest-deep, buoyant, making Jeongin weightless, effortless to hold.
But the real discovery was the jets.
There were six in total, positioned around the tub's interior. Seungmin had maneuvered them until one hit directly against Jeongin's lower back, pulsing warm water against his spine, while another—stronger, more insistent—bubbled up from below, positioned perfectly to surge between Jeongin's spread thighs.
"Oh," Jeongin had gasped when they found the angle, his back arching, his hips jerking involuntarily. "Oh, fuck, Seungmin, right there—"
The jet was hitting his cock—trapped between his stomach and the water's surface, exposed and sensitive—and the pressure was relentless, a constant, vibrating stream that matched the rhythm of Seungmin's shallow thrusts from below. Another jet, positioned lower, pushed against his perineum, against the place where Seungmin entered him, creating a triangulation of sensation that made him see stars.
"Don't move," Seungmin had whispered, his teeth at Jeongin's shoulder, his hands gripping his hips to keep him positioned just so. "Let it happen. Let the water do the work."
They'd been there for twenty minutes, barely moving, just existing in the perfect pressure—Seungmin's cock buried deep, throbbing with his heartbeat, while the jets did the rest. Jeongin was wrecked, his head lolling back against Seungmin's shoulder, his mouth open on constant, breathy gasps that he couldn't control. The water made him hard, kept him hard, the jet's stream relentless against his cockhead, making him twitch and leak into the current.
"I'm close," he whimpered, his hands gripping the tub's edge, his body trembling. "Seungmin, I'm so close, I can't—it's too much—"
"Not yet," Seungmin breathed, holding him still, feeling the vibration of the water through Jeongin's body, directly into his own cock. "Wait for me. Feel it. Just feel it."
They were lost in it, in the sensation, the steam, the distant city. Jeongin's hips made tiny, involuntary circles, grinding against the jet, clenching around Seungmin, both of them teetering on the edge of orgasm, suspended in the perfect, agonizing buildup—
The rooftop door slammed open.
"—swear I smelled chlorine up here!" Changbin's voice, loud and cheerful, echoed across the deck. "Told you there was a hot tub!"
Seungmin and Jeongin froze, but they couldn't separate—not quickly, not without obvious movement. They were stuck, joined, Jeongin still impaled, the jets still hitting him, making him clench involuntarily around Seungmin's cock.
"Where?" Felix asked, his voice closer.
"Over there, behind those plants—"
Six figures emerged from the steam, silhouetted against the city lights, already stripping off jackets and shoes, chattering excitedly. They didn't see the two figures in the far corner at first—the steam was thick, the corner dark, and Seungmin and Jeongin were submerged to their shoulders.
Then Chan squinted, pointing. "Is that—are people in there?"
"Seungmin?" Hyunjin called out, his voice curious but not alarmed. "Jeongin?"
"Yeah," Seungmin managed, his voice strangled, his hands gripping Jeongin's hips hard enough to bruise. "Just—us. Relaxing."
"Awesome!" Changbin cheered, already pulling his shirt over his head. "Room for more?"
"Actually—" Seungmin started, but Jeongin gasped—a sharp, involuntary sound—as the jet hit his cock just right, his body clenching around Seungmin. He covered it with a cough, his face turning red.
"You okay?" Felix asked, approaching the tub's edge.
"Fine!" Jeongin squeaked, his voice an octave too high. "Just—the water's hot. Really hot."
"Move over then," Lee Know said, already stepping out of his pants. "Share the space."
They couldn't say no without being suspicious. Seungmin nodded, minutely, and they shuffled—carefully, so carefully—toward the corner, Jeongin sliding along
Seungmin's cock with a silent gasp, settling into a new position that kept them joined but facing the center of the tub.
The others piled in, one by one, creating splashes and waves that rocked them. Chan entered first, settling opposite them, eyes closed, smiling. Then Felix, then Changbin, then Han, then Hyunjin, then Lee Know. The tub was large but crowded now, seven bodies in the steaming water, Seungmin and Jeongin pressed into the corner.
"Oh my god, this is amazing," Changbin groaned, floating on his back. "Why didn't we find this sooner?"
"Seungmin and Jeongin look relaxed," Hyunjin observed, his head tilted, squinting through the steam. "Too relaxed. What are you two doing over there?"
"Just sitting," Seungmin said, his voice tight. "Talking."
"Jeongin's on your lap," Lee Know pointed out, his eyebrows raised but not suspicious. "That's cute. Couple time."
"Yeah," Jeongin breathed, his hands gripping Seungmin's knees under the water, his body rigid with the effort of staying still. "Just... couple stuff."
The jet had shifted with the water movement. It was hitting him directly now—full force against his exposed cock, pulsing warm water against his sensitive head, his shaft, his balls. He was still hard, still inside, still surrounded by Seungmin's heat, and the combination was making his vision blur.
"You okay?" Chan asked, opening his eyes, looking at Jeongin's face—flushed, sweating, his mouth slightly open. "You look flushed."
"Hot," Jeongin managed. "The water. Really... really hot."
Then the jet surged—stronger, suddenly, as Changbin shifted and redirected the flow with his movement—and hit Jeongin's cock with precision that made his back arch, his hips jerk forward, and a moan tear from his throat before he could stop it.
"Ah—!"
The sound was unmistakable. Not a cough, not a gasp—pure, sexual pleasure, ripped from him involuntarily. His body clenched around Seungmin, making Seungmin groan too, the sound low and guttural and completely wrong for "just talking."
Silence fell over the tub.
Felix, who was closest, squinted through the water. His eyes tracked from Jeongin's face—destroyed, desperate, his mouth open on silent pants—to his position on Seungmin's lap, to the way Seungmin's hands were gripping his waist, to the slight, rhythmic movement of the water between Jeongin's spread legs that didn't match the tub's natural current.
Then he looked down—really looked—at where their bodies met under the water.
"Oh my god," Felix whispered, his face draining of color, then flooding red. "Oh my god. Oh my god."
"What?" Chan asked, sitting up, following Felix's gaze.
"Are they—" Han started, then stopped, his mouth falling open.
"Jeongin's sitting on..." Lee Know's voice trailed off. His eyes widened. "Are you naked?"
"Why are you naked?" Changbin asked, his voice carrying across the water like a gunshot. "Why is Seungmin naked? Why is his—are you fucking right now?"
"We were—" Seungmin started, desperate, but Jeongin gasped again, the jet hitting him relentlessly, his body betraying him with another clench, another jerk of his hips.
"You're moving," Hyunjin said, his voice faint, his finger pointing. "I can see—the water— you're moving, you can't stop, can you?"
"We tried to stop!" Jeongin sobbed, mortified, but the jet surged again and he whimpered, his head falling back against Seungmin's shoulder, his hips rolling involuntarily, seeking friction, seeking completion. "We tried, we couldn't—oh god, oh god—"
"Don't—don't move," Chan stammered, his hands flying up, covering his eyes but peeking through his fingers. "Don't move, just—just stop, just—"
"I can't!" Jeongin wailed, the pleasure overwhelming, the embarrassment making it hotter, making him closer. "I can't, I'm gonna—Seungmin, I'm gonna—"
"Don't you dare," Changbin shouted, already climbing out of the tub, his face bright red. "Don't you dare come right now, not while we're—"
But the jet hit him one last time, perfect and relentless, and Jeongin broke—his body arching, his mouth open on a silent scream, his release pulsing into the water between them, his body clamping down on Seungmin's cock so hard that Seungmin groaned, his own orgasm ripped from him by Jeongin's contractions, spilling inside him, both of them shaking and gasping and completely unable to hide it.
The silence that followed was absolute.
Then Han, from the edge of the tub where he'd scrambled: "Did you just... did you both just..."
"Get out," Seungmin managed, his voice wrecked, his face buried in Jeongin's shoulder. "Please, just—get out, give us a minute—"
They got out—all of them, faster than they'd gotten in, tripping over themselves, not making eye contact, grabbing towels and clothes and fleeing toward the door.
Chan was last, pausing at the threshold, his back to them. "The jets," he said quietly. "That's why you were... the jets were hitting..."
"Go," Seungmin begged.
Chan went.
They were alone again, trembling, mortified, still joined, the water cooling around them.
"I hate everything," Jeongin whispered.
"The jets," Seungmin agreed weakly, "were really well positioned."
Jeongin laughed—a broken, hysterical sound—and finally, carefully, separated. They climbed out, dripping and naked and thoroughly caught, and didn't speak of it again for three weeks.
Three weeks of silence wasn't enough.
They'd made it back to their room that night—wrapped in towels that didn't cover enough, dripping chlorinated water down the hallway, passing a group of businessmen who stared. They'd showered separately, ashamed, then climbed into bed and held each other, shaking with residual adrenaline and mortification. The next morning, they'd walked into the breakfast area to find six heads snap toward them, then immediately down, six faces turning varying shades of red. Nobody spoke. The silence was worse than screaming.
Now, three weeks later, the silence had evolved into something worse—knowing glances, smothered laughter, the way Felix would suddenly blush and leave the room whenever they entered.
It was Chan who finally broke it.
They were in the practice room, stretching before rehearsal, when Chan walked over and sat cross-legged in front of them. "We need to talk about the hot tub," he said, his voice carefully neutral.
"No we don't," Seungmin said quickly.
"Yes we do," Changbin called from across the room, where he'd been pretending to stretch. "Because Han keeps making jet noises and I can't take it anymore."
"Like this," Han demonstrated, buzzing his lips, his eyes rolling back in exaggerated ecstasy.
"Stop!" Jeongin shrieked, throwing his water bottle at him.
The room dissolved into chaos—everyone talking at once, the tension breaking into hysterical laughter, the story spilling out in fragments. How they'd thought the door was locked. How they'd lost track of time. How the jets had been positioned just so.
"You couldn't wait five minutes?" Hyunjin asked, wiping tears from his eyes. "Five minutes and we would've gone to bed."
"We tried to warn you," Seungmin defended weakly. "I said 'actually'—"
"You said 'actually' like you were declining a second helping of rice!" Changbin shouted. "Not like you were impaled on your boyfriend!"
The word made them both flinch, then laugh, then hide their faces.
"Look," Chan said, raising his hands for quiet, his own smile barely suppressed. "New rule. If the hot tub door is locked, we assume. We don't ask. We don't knock. We walk away."
"And if we hear moaning," Lee Know added, "we assume it's the jets. Just the jets. Very powerful jets."
"Thank you," Jeongin whispered, his face still red.
But the teasing didn't stop. It became a running joke—whenever they were late, someone would ask if they'd gotten stuck. When they were tired, someone would suggest a "relaxing soak." The jets in the practice room water cooler became suspicious. Everything was suspicious. But Seungmin and Jeongin will always remember it as the day they discovered how a hot tub could cure their infinite hornyness.