Chapter Text
Isabella was sprawled on the couch, scrolling through her phone when Kai appeared beside her, eyes glinting with something unreadable.
“I’ve been thinking,” he said quietly, adjusting his glasses, “maybe we should try something… different tonight.”
She looked up, curious. “Oh? Like what?”
Kai’s lips twitched into a small, almost shy smile. “A roleplay. You, my student. Me, your professor.”
She laughed, teasing, “Professor Kai, huh? That could be fun.”
But what surprised her was how quickly Kai slipped into character.
Within minutes, he was sitting straight-backed at the table, glasses perched low, voice calm but firm.
“Love, you’ve been neglecting your studies,” he said, the tone carrying a quiet command.
Her heart raced. “I… I’m sorry, Sir.”
Kai’s eyes darkened slightly. “That calls for a lesson on discipline.”
Before she could protest, he guided her over his lap.
“Don’t test me, Love.”
She shivered, whispering, “Yes, Sir.”
That simple nickname — soft yet possessive — sent warmth flooding through her.
And just like that, the nerdy Kai transformed into someone utterly irresistible.
Kai’s hand came down firmly, the sharp smack echoing softly in the quiet room. Isabella’s breath hitched, warmth blossoming where his palm met her skin.
“Good girls listen,” Kai murmured, fingers tracing soothing circles over the reddened skin. “And good girls don’t test their professors.”
Then, without warning, Kai’s hand cracked down again—this time sharper, a quick, stinging slap that made Isabella gasp.
Her eyes widened, heart pounding, but she didn’t pull away.
“That’s for forgetting your place, Love,” Kai said low, voice thick with control and something softer underneath.
He paused a moment, letting the sting settle, then cupped her face gently, thumbs brushing her flushed cheeks.
“You like this, don’t you? The way I take control.”
She nodded, eyes shining with trust and desire. “I do, Sir. It feels… right.”
Kai’s palm lingered for a moment on Isabella’s flushed skin before his fingers trailed lower, slow and deliberate.
“Let me show you what happens when you behave, Love,” he murmured, voice low and commanding.
His fingers slipped beneath the waistband of her skirt, brushing against the soft curve of her hip, then sliding slowly inward.
Isabella’s breath hitched, body responding eagerly to the teasing touch.
Kai circled one finger gently, tracing a path that made her shiver.
“Good girls learn to beg, Love,” he whispered.
She trembled but kept her voice soft, “Please, Sir…”
His fingers moved with confident rhythm, teasing and coaxing, pushing just enough to make her ache.
“You’re mine to take care of,” Kai said, eyes dark with desire.
Isabella arched closer, craving more, caught between the sting of discipline and the warmth of his touch.
Kai’s fingers paused at the slick warmth, then slowly slid inside her, curling with practiced ease.
Isabella gasped softly, body trembling at the sudden, deeper touch.
“Relax, Love,” Kai murmured, voice soothing but firm. “I’m right here.”
He moved with steady rhythm, fingers stretching and exploring, every motion measured to bring pleasure without rushing.
Isabella’s breath grew ragged, eyes fluttering shut as waves of sensation rolled through her.
Kai leaned down, pressing a gentle kiss to her temple. “You’re doing so well.”
His fingers deepened their pace, coaxing and filling her completely, his quiet strength grounding her in the moment.
“Tell me how good you feel,” he whispered, voice low and possessive.
She opened her eyes, voice breathy and surrendered, “So good, Sir. Only yours.”
Kai’s fingers pushed harder, deeper inside her, making Isabella gasp and arch against him.
“You like being stretched for me, don’t you, Love?” His voice dropped low, thick with possession. “You’re mine to fuck with, mine to punish—and mine to make beg.”
Isabella’s breath hitched, eyes wide, her voice trembling but eager. “Please, Sir… fuck me with your fingers.”
Kai smirked against her skin, thumb circling her clit with sharp, demanding strokes.
Isabella’s breath hitched, body trembling under Kai’s relentless fingers. Waves of pleasure crashed over her, and with a shuddering moan, she came hard, trembling in his grasp.
“Kai…” she gasped, voice ragged and needy.
But Kai didn’t slow. His fingers still moved, just enough to keep her on edge, but he held himself back, voice low and commanding.
“You came first, Love. You’re not done yet,” he murmured, lips brushing her ear. “Now it’s my turn to make you beg.”
Isabella whimpered, still riding out her high, but the hunger in his eyes made her shiver with anticipation.
Kai slid his fingers out slowly, then pressed a kiss to her flushed skin. “Wait for me.”
“You’re such a filthy girl, begging like that,” he growled. “I’m going to ruin you, make you desperate, make you scream my name.”
His fingers moved faster, rougher—no longer gentle but claiming.
“Tell me you’re mine, Love . Tell me you belong to me.”
She whimpered, voice barely more than a plea, “I’m yours, Sir. Always yours.”
Kai’s grip tightened on her hip, anchoring her as he drove his fingers deep and relentless, pushing her closer and closer to the edge.