"You're running? I'll hang up then."
"Doing squats."
Fumika didn't suspect a thing. It wasn't the first time—once before, she'd called while Sayuki was running.
Unlike her fake stair-climbing, her sister was genuinely into fitness.
Fumika added curiously, "Isn't this Chiba-kun's gym time? He hasn't found you yet?"
"He's here. I'm just supervising his workout. Doesn't stop me from training."
Fumika nodded. "Oh, okay. Tell Chiba-kun I might not be back for a while. Fujiwara-san's been down lately, so I'm keeping her company. If he's too tired, he can… rest in the massage room for a bit. I'll massage his muscles when I'm back."
"Got it."
Sayuki highly suspected her sister meant sleep in her bed but changed her wording, remembering the bed wasn't just hers.
"Alright, that's it. Hanging up," Fumika said, putting away her phone.
Yurika Fujiwara, browsing clothes nearby, approached with a weary smile.
"Am I holding you up? Why don't you head back, Fumika? I can shop alone."
Though eager to return, Fumika said, "No worries, just called Sayuki about something."
"Oh, Sayuki? What's she up to? If it's okay, maybe invite her out. I'll treat you both to dinner," Yurika said, realization dawning.
"She's working out."
"Fitness, huh? She's really dedicated…"
*
Sayuki's workout wrapped up, and she was a bit miffed. Some newbie dared question her skills.
"Not bad, Sayuki-san, but I thought you'd be a pro at squats. Those moves were kinda sloppy…"
"Let me wipe your back. No need for the front."
Shuichi diligently worked up a lather, the slick sensation making it hard to stay on target, which was honestly a challenge.
His fingers glided over her shoulders, tracing the taut muscles with slow, deliberate strokes. The warm water and soap created a silken sheen, and he let his thumbs linger at the base of her neck, pressing just enough to draw a soft sigh from her. "Slipping already?" She murmured, her voice teasing, as his hands wandered to the curve of her spine, savoring the heat of her skin.
"Close enough. I don't mind going the extra mile for you, Sayuki-san."
"You're not scared my sister will find out?" Sayuki said suddenly, a soft hum escaping her.
"You had Fumika-san take my call before, and now I'm taking hers. Not worried she'll connect the dots to last time and get upset?"
Shuichi smiled. "I trust you, Sayuki-san."
"What's that mean?" Sayuki squinted her pretty eyes.
"You know Fumika-san best. She's your most important person. So… the fact that you've never shut down my flirting says a lot, doesn't it?"
"Like what?" Sayuki asked, intrigued, pinching his chin.
"Like, even if she finds out, Fumika-san might not be that mad. You know it, so you don't resist or stop me."
Shuichi's hand slipped to her toned thighs, lathering foam.
"You're so sure? What if I haven't thought that far?" Sayuki didn't stop his wandering hand.
"No way. You'd never do anything to hurt Fumika-san," Shuichi said confidently.
"Slick talker," Sayuki chuckled, tacitly agreeing.
"Which part's slick?" Shuichi's hand, unsteady, slipped again on her thigh.
Sayuki instinctively clamped her legs. "Don't squirm, or the reward's off."
"What's the reward for a good boy?" Shuichi asked, curious.
"Good boys get my gentle encouragement and guidance."
"And bad boys?"
"Bad boys get a harsh lesson from me."
Shuichi made his choice. "I'll be a bad boy with you, Sayuki-san. Good boy rewards? I'll claim those from Fumika-san."
Sayuki shot him a look. "So you prefer my rough treatment?"
"Uh… not exactly, but, okay, your manhandling is kinda hot," Shuichi admitted.
Fine, he was already on this path. Pervert or not, who cares?
"Since you're choosing bad boy, don't expect me to pamper you like my sister."
Sayuki stood, rinsing off the foam, and beckoned him. "Come dry me off."
Shuichi shrugged, grabbing a towel and carefully drying her.
"Your abs feel different from mine, Sayuki-san."
"How so?"
"Dunno… Wanna feel mine?"
"You'll regret it."
After drying off, Sayuki hoisted Shuichi up, carried him to the bedroom, and tossed him onto the soft bed.
Then she straddled his waist…
Her thighs clamped around him, pinning him with a possessive grip. She leaned in, her breath hot against his ear as she nipped his lobe, her nails raking lightly down his chest, leaving faint red trails. "Bad boys don't get to call the shots," She whispered, her lips brushing his jaw before biting down softly, drawing a sharp gasp from him as she rocked her hips, teasingly slow, making his pulse race.
Sayuki's grip tightened on Shuichi's hips, her thighs like steel as she pressed herself closer, her body radiating heat. Her lips curled into a wicked smirk, eyes glinting with mischief as she dragged her nails harder down his chest, just enough to sting without breaking skin. Shuichi's breath hitched, his body tensing under her weight, caught between the thrill of her dominance and the edge of discomfort.
"You wanted this, didn't you?" Sayuki purred, her voice low and taunting. She shifted, grinding against him with deliberate slowness, her movements precise, teasing him to the brink of desperation. His hands instinctively reached for her, but she grabbed his wrists, pinning them above his head with one hand, her strength unyielding. "No touching unless I say so," She growled, her lips hovering over his, close enough to feel her breath but denying him the kiss he craved.
Shuichi squirmed, the pressure of her body and the restraint driving him wild. "Sayuki-san, c'mon…" He groaned, voice thick with need. Her only response was a sharp nip at his collarbone, followed by a slow, deliberate lick that sent a shiver through him. She released his wrists, only to trail her fingers down his sides, her touch alternating between feather-light and possessive, leaving him guessing her next move.
She leaned back, her hands sliding to his thighs, spreading them slightly as she settled between them. Her eyes locked onto his, daring him to break her gaze as she lowered herself, her lips brushing against the sensitive skin of his inner thigh. Shuichi's breath caught, his body arching slightly as she teased him with soft kisses, each one inching closer to where he ached for her. "Patience," She murmured, her voice vibrating against his skin, "Bad boys wait."
Her fingers danced along his waistband, tugging it down with agonizing slowness, exposing him to the cool air and her heated gaze. She didn't rush, savoring his reactions—every twitch, every stifled moan—as she took control. When her lips finally grazed him, Shuichi let out a choked gasp, his hands gripping the sheets. Sayuki's movements were deliberate, her tongue teasing in ways that made his vision blur, each sensation building until he was trembling beneath her.
She pulled back just as he was on the edge, smirking at his frustrated groan. "Not yet," She said, climbing back up to straddle him again, her hands pressing his shoulders into the mattress. She leaned in, her lips crashing against his in a fierce, hungry kiss, all teeth and heat, swallowing his protests. Her hips moved again, grinding against him with a rhythm that was both torturous and electrifying, pushing him closer to unraveling.
"Sayuki-san, please…" Shuichi managed, his voice raw, but she only laughed softly, her nails digging into his shoulders as she picked up her pace, her body moving with a confidence that left no room for argument. The room filled with the sounds of their breathing, the creak of the bed, and Shuichi's increasingly desperate gasps as Sayuki took him apart, piece by piece, until he was lost in her completely.
*
Some time later, Shuichi lay on the bed, catching his breath.
Unlike Fumika's gentle care, Sayuki was brutally rough.
His lips were chapped, a bite mark marred his shoulder, and his body ached all over.
Truly a thorough ravishing.
"How're you handling this, Sayuki-san? These bite marks—how do I explain them to Fumika-san?"
Shuichi's tone was almost sulky, like a teen genuinely bullied by a woman.
Sayuki, lounging against the headboard, savoring the afterglow, glanced at him. "Weren't you all confident? Not scared of her finding out? What, nervous now?"
Shuichi dropped the act, flashing a grin that Sayuki found infuriating. "It's not a big deal. I'll serve you today, then pamper Fumika-san later. No workout, so I'll massage her instead. She'll be tired from shopping. But you, Sayuki-san—what about the sheets?"
"…"
Sayuki glanced at the hopelessly mussed sheets, her eyelid twitching. That was a problem.
How to explain swapping them out when they were changed just yesterday?
"Oh? Fumika-san's calling."
Shuichi heard a phone buzz on the nightstand. At this hour, it was likely her, no matter whose phone.
Sayuki sprang up, hopped off the bed, and yanked the sheet, sending Shuichi and the pillows tumbling.
The blanket was already on the floor to avoid getting soiled.
Shuichi rolled onto the floor, groaning, then reached for the phone on the nightstand, answering on speaker.
As Sayuki balled up the sheets, she leaned close, her fingers grazing his arm, a teasing reminder of their earlier intimacy. Her touch lingered, nails lightly scraping his skin, sending a shiver through him as she whispered, "Behave, or I'll make you explain the sheets yourself," Her breath hot against his ear, amplifying the thrill of their secret.
"Sayuki, is Chiba-kun asleep? I'm almost back. He's not mad at waiting, is he?"
Sayuki balled up the sheet, replying casually, "Mad? I'm the one who should be. Told him to nap in the massage room, but he refused. Said he needed your scent to rest properly, so he stayed in your bed and messed up the sheets in his sleep."
Shuichi opened his mouth, then sighed. Fine, he'd take the blame.
Needing her scent and soiling the sheets in his sleep?
Fumika blushed. "Sorry, Sayuki. I'll change them when I'm back."
"No need, I'm handling it. Gotta air out the room too. If you do this later, you won't sleep till midnight. Just hurry back and feed him."
"Feed? Feed what?" Fumika squeaked, alarmed by the phrasing.
Sayuki chuckled. "What do you think, Nee-san?"
"I don't know! You're always teasing me. I'm hanging up," Fumika said, flustered, cutting the call.
Shuichi listened to the dial tone, looking at Sayuki. "I'm starting to doubt my judgment. You're pretty good at fooling Fumika-san too."
"Yeah, if she finds out about us, she'll be heartbroken. No more letting you toy with her willingly. Panicking yet?"
Sayuki smirked, sauntering to the bathroom's changing area, stuffing the sheets into the washer. After starting it, she returned to the bedroom.
"I'm more wondering if you love this sneaky thrill, so you're keeping it from Fumika-san."
Shuichi said, getting up to dress.
"Keep guessing," Sayuki said, stepping close, seizing the moment to kiss him lightly on the lips. "Point is, you're not getting an open three-way sleepover that easily."
Shuichi mused, "No special twin connection, then?"
Sayuki raised a brow. "Meaning?"
"Like, when I'm playing games with Fumika-san, do you feel anything?" Shuichi asked, curious.
Sayuki rolled her eyes. "What? No way that happens."
"Shame. I thought maybe that connection made you peek, then you couldn't resist and decided to sneak a taste of me," Shuichi said, shaking his head regretfully.
Sayuki's eyes narrowed, a playful glint in them as she pushed him toward the door, her hand lingering on his chest, fingers tracing the faint marks she'd left earlier. "Keep dreaming, little man," She purred, her nails grazing his skin one last time, leaving a tingling warmth. "Now get out before I decide to keep you for round two."
Shuichi grinned, stepping into the hall. "Fine, but you owe me for the sheet's excuse."
Sayuki snorted, shutting the door behind him. "You owe me for not ratting you out to Nee-san."
Alone, she leaned against the door, her cheeks flushing. That brat's teasing had her playing with the smart toilet like a fool, and now she'd gone and "eaten" him. Calling her lonely? Jerk.
Shuichi, outside, adjusted his pants, glanced at the closed door, and opened the system interface, ready to head downstairs.
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