Can’t Wait
Warnings/Themes: Explicit sexual content (18+ only), friends with benefits, secret casual hookups, quickie sex, wall sex, alcohol consumption, light possessiveness and desperation, semi-public risk (party continuing outside), dirty talk, unprotected sex, creampie, internal conflict from friend’s crush, emotional tension mixed with raw lust. Consensual but rushed and urgent.
Word count: 1.9k+
Pairing: Choi San x reader
Brief Summary: At a relaxed pool party with mutual friends at her house, long-time best friend Choi San pulls her inside for a supposed quick favor. Unable to hold back his need, he initiates a desperate quickie against the bedroom wall. She tries to remind him they should wait and that her friend has a crush on him, but his heated kisses and needy words overwhelm her, leading to a fast, intense wall sex encounter while the party goes on just outside.
——
The backyard glowed under the bright afternoon sun, the pool sparkling like a jewel amid the relaxed gathering. Music played at a comfortable volume from the patio speaker, mixing with laughter, the clink of bottles, and occasional splashes. It was the perfect chill day—friends scattered around, some lounging on towels or chairs, others cooling off in the water. No stress, just good company and easy vibes.
She had spent most of the time sunbathing on a thick towel near the pool’s edge, her skin warm and slightly flushed from the sun. Her favorite bikini fit her perfectly, the ties at the hips and back adding a subtle edge. She’d slip into the pool now and then for a refreshing swim, letting the cool water wash over her heated body before climbing back out to dry off and sip her drink. A couple of the other girls joined her in sunbathing, chatting lightly while the guys dominated the deeper end—playing around, tossing a ball, and generally acting like overgrown kids.
Choi San stood out effortlessly in the middle of the group. His toned, athletic frame moved through the water with natural power. When he pulled himself up onto the edge, water streamed down his broad chest and defined abs, tracing every line before dripping from the waistband of his black swim trunks. His dark hair clung wetly to his forehead, and that signature bright smile with the dimples flashed as he laughed at something one of the guys said. He looked incredibly attractive, sun and water making his skin glisten.
Mina, one of her friends, had been stealing glances at him more often than usual. For months she had been hinting at her crush—laughing a little too loudly at his jokes, finding excuses to be near him, and repeatedly pulling her aside to beg, “You’re his best friend. Just put in a good word for me? I really like him.” Each time, she had deflected gently: “San isn’t really interested in dating right now. I’d know—he tells me everything.” It wasn’t a complete lie. San wasn’t looking for a relationship.
The full truth, however, remained their secret.
They had been inseparable for years—best friends since college, bonded through late nights, shared secrets, ridiculous inside jokes, and an easy closeness that made everyone else see them as a package deal. No one suspected the casual hookups that had started during one too-drunk, too-horny night and never quite stopped. They happened in impulsive moments—stupid times when inhibitions vanished and the pull between them became too strong. No strings attached. No one needed to know.
Today felt no different at first. The vibe stayed perfectly chill. She floated lazily in the pool earlier, eyes closed against the sun, until San’s voice cut through the noise.
“Hey,” he called from the pool steps, shaking water from his hair. “Can you help me find something inside real quick? I think I left my phone charger somewhere and my phone’s about to die.”
The excuse was weak, but she played along with a dramatic sigh and a smile. “You’re hopeless without me, Sannie.” She quickly try to dry herself and stood. Mina shot her a curious glance, but she brushed it off casually. “Be right back, guys.”
San waited for her by the sliding glass door, his hand brushing the small of her back as they stepped into the cooler air of the house. The sudden temperature drop made her sun-kissed skin prickle. The party sounds became muffled—laughter, music, splashes—leaving them in relative quiet.
He didn’t head for the living room. Instead, he guided her straight to her bedroom, pushing the door open and pulling her inside. The lock clicked shut behind them with quiet finality.
“San,” she started, turning toward him with a mix of amusement and mild warning.
He didn’t let her finish. In one swift motion, he had her backed against the closed door, his still-damp body pressing close. His hands gripped her hips firmly as his mouth claimed hers in a hungry, urgent kiss.
She responded instantly, her body reacting before logic could intervene. His lips were demanding, tasting faintly of beer and the summer heat. When he broke the kiss to trail hot, open-mouthed kisses down her jaw and onto her neck, she shivered.
“Fuck, I absolutely need you right now,” he mumbled against her skin, voice low and rough with raw desperation. His breath was hot, sending goosebumps racing along her arms. “Been watching you all day in that bikini… the way it hugs your body, the way you look all sun-warmed. I can’t stop thinking about you, baby. I need you so bad.”
She loved it. She wouldn’t lie—she loved when he got like this, needy and unable to hold back, his usual playful demeanor cracking under the weight of want. Her hands came up to clutch his shoulders, feeling the firm muscle still cool from the pool. Heat bloomed low in her belly, her pulse quickening.
“San… we can’t,” she whispered breathlessly, even as she tilted her head to give him better access to her neck. His lips sucked gently at her pulse point, then nipped, drawing a soft gasp from her. “The others are right outside. We should wait until everyone leaves. This is too risky right now.”
He groaned against her neck, hips pressing forward so she could feel exactly how hard he was beneath his swim trunks. “I can’t wait, sweetheart. I’ve been dying since I first saw you out there. Just a quick one. Please, princess. I need to feel you now.”
His hands roamed urgently, pushing the towel away so it pooled at her feet. Fingers traced the edges of her bikini top, teasing the swell of her breasts as he continued kissing and nipping along her collarbone.
“San, seriously,” she managed, voice shaky despite the arousal building fast. “Mina has a real crush on you. She keeps begging me to set you two up. I can’t keep telling her you’re not interested while we keep doing this behind her back. We can’t keep hooking up like this. She wants to ask you out, and I feel like I’m standing in the way by letting this continue.”
He lifted his head, eyes dark and intense as he met hers. For a split second she thought he might pull back. Then he kissed her again—deep, consuming, tongue sliding against hers in a way that stole her breath.
“I don’t want her,” he murmured when they parted, forehead resting against hers. “I want you. Only you.” One hand slipped down, fingers dipping beneath the waistband of her bikini bottoms. He found her already slick and warm, groaning softly as he stroked her. “Feel how ready you are for me, baby? Your body doesn’t lie even if your words try to.”
She bit her lip, hips twitching forward into his touch. “San… we really shouldn’t—”
But the protest faded as he kissed her neck again, mumbling between presses of his lips. “Just quick, I promise. In and out. No one will notice. I need you too much right now, gorgeous.”
Her resistance crumbled under the onslaught of his desperation and her own desire. She pulled him closer, kissing him messily as his fingers continued to tease her. The faint sounds of the party—laughter, splashes, music—filtered through the window, making the moment feel even more forbidden and thrilling.
San pushed her bikini bottoms down her legs just enough for access, then freed himself from his swim trunks. His cock sprang out—thick, hard, the tip already leaking with need. He lifted her effortlessly, her legs wrapping around his waist as her back pressed firmly against the door-turned-wall.
“Ready?” he panted, lining the head of his cock up with her entrance, sliding it through her slick folds.
She nodded, whispering, “Hurry,” her arms tightening around his neck.
He thrust in deep in one smooth, powerful motion, burying himself to the hilt. They both stifled moans at the sensation—him stretching her perfectly, filling her completely in an instant. San stilled for only a heartbeat, letting her adjust to the sudden fullness, then started moving with urgent, deep rolls of his hips.
“Fuck, you feel incredible,” he groaned against her ear, pace already fast and hard. “So tight and wet for me. Been thinking about this all day.”
The door creaked faintly with each powerful thrust, but neither cared. Skin slapped against skin in a quick rhythm. His mouth found hers again in messy, heated kisses while he fucked her steadily against the wall, one hand supporting her thigh and the other braced beside her head for leverage.
She clung to him, nails digging into his shoulders as pleasure built rapidly. The position allowed him to hit deep with every stroke, the angle perfect for quick, overwhelming sensation.
“San—,” she gasped quietly, meeting his thrusts as best she could.
He understood without hesitation, hips snapping faster, pace turning almost punishing in its urgency. Sweat began to mix with the remnants of pool water on their bodies. His breathing grew ragged, forehead pressed to hers.
“God, I needed this,” he muttered, voice strained. “Needed you so fucking much, baby. Can’t get enough.”
Pleasure coiled tight and hot in her belly, building fast from the intense friction. She clenched around him, drawing a low groan from his throat.
“Come for me, sweetheart,” he urged, thrusting deep and grinding his hips in small circles to add pressure where she needed it. “Let me feel you come around my cock.”
The words pushed her over the edge. Her orgasm hit hard and fast, walls fluttering and clenching rhythmically around him as waves of pleasure rolled through her. She bit down on his shoulder to muffle her cry.
San cursed under his breath, his thrusts becoming erratic. With a few more deep, stuttering pumps, he buried himself to the hilt and came, pulsing hot inside her as he filled her completely. The low, guttural moan he released was barely contained.
They stayed locked together for several long moments afterward, breathing hard, bodies trembling from the quick, intense release. San pressed soft, almost tender kisses to her temple, her cheek, the corner of her mouth—gentle in the aftermath of the rush.
Finally, he eased out of her carefully, a trickle of his release slipping down her thigh. He grabbed tissues from the nightstand, cleaning them both with quick but surprisingly gentle motions before helping her pull her bikini bottoms back up and adjust her top.
She smoothed her hair and straightened herself, cheeks still flushed. “We really can’t keep doing this, San,” she said quietly, though her voice lacked complete conviction after the intensity they’d just shared. “Mina likes you. I can’t keep blocking her chance like this.”
He cupped her face in his hands, thumb brushing her lower lip as he looked at her with those intense, dark eyes. “I’m not interested in her. Never have been. This is us.” He leaned in for one last quick, lingering kiss. “But we should get back before someone starts looking.”
They slipped out of the room separately—her first, then him a couple of minutes later—to avoid raising suspicion.
Back outside by the pool, the party continued as if nothing had happened. The sun still shone brightly, laughter still filled the air. Mina gave her a slightly questioning look as she rejoined the group, but she brushed it off with a casual smile and another cold drink.
San jumped back into the water with the guys, his easy, dimpled grin returning as if the entire encounter had been nothing more than a quick trip inside. Yet when their eyes met across the shimmering pool water, the heat and secret satisfaction still lingered between them—fast, addictive, and impossible to fully ignore.
The gathering remained perfectly chill on the surface.
