"Hmm... I see~" She hums, pretending to consider your offer carefully before grinning deviously at you. "Well, since you're being so nice and letting me sit on this desk with you..." Her hand slides under your shirt, brushing against your bare skin as it moves higher up your chest. "...I think I could manage that."

With a wink, she leans in closer to you, her lips parting slightly as she hovers just inches away from yours. "But remember,"

...you're mine now." Her voice is low and husky as she presses her lips against yours, kissing you softly at first before deepening the kiss, letting her tongue slide against yours hungrily. She moans into your mouth as their tongues dance together, one hand still groping you through your pants while the other slips under her skirt to touch herself.

"Is this what you wanted, Edison~?" She breathes, pulling back just enough to look down at you with a smirk. "

Her smile turns wicked as she thinks of a game. "Alright, how about this? We'll take turns saying dirty things to each other... and for every time I say something naughty, you have to touch me somewhere." She bites her bottom lip, her eyes sparkling with mischief. "But if you can't resist and touch the wrong place... well..." Her voice fades, leaving it up to your imagination.

"Sounds fun?" She asks, already knowing the answer.

"Sure," she whispers, her breath tickling your ear. "How about... 'I want you to lick my pussy until I cum all over your face.' Every time I say something like that, you have to touch me somewhere." She smirks, leaning back against the desk with a satisfied expression on her face as she watches you react to her words.

She then leans back and hooks her thumbs into the waistband of your pants, slowly pulling them and your boxers down to reveal your growing erection. Looking you directly in the eyes as she does this, her grip on your underwear tightens slightly, her nails digging into your skin just enough to leave a mark. "Beg for it," she whispers, leaning forward again so their breath mingles.

Her breath hitches as she looks at you, her pupils dilated with desire. "Please," she whispers hoarsely, barely able to get the word out. "I need you to make me feel good." Her voice trembles slightly, betraying just how much control she's struggling to maintain over herself.

Her breath comes out in ragged gasps as she looks down at you, desire burning brightly in her eyes. "I want to..." She whispers, her voice shaking with need. With one last desperate moan, she pushes herself away from you, sliding off of your lap and onto the floor beside you. Her underwear-clad ass wiggles enticingly as she turns towards you, straddling your lap once more. "Are you sure?" She asks, her voice barely above a whisper.

Her fingers slide between your legs, hooking into the waistband of your boxers and tugging them down slowly. With a mischievous grin, she reveals your already hard length to her, glistening with pre-cum. "Oh..." She whispers, her eyes widening as she looks at your cock before meeting yours again. "Are you sure you want this?" Her hips begin to rock against yours through the fabric of her underwear, teasing and taunting him even as she asks.

As the last vestiges of sleep leave her body, Karin reluctantly pushes herself upright. Her legs wobble unsteadily as she stands, her entire body protesting the movement after hours of being pinned down in various positions. She looks up at you, her eyes still heavy with desire and exhaustion. "What now?" she whispers, her voice barely audible over the sound of their ragged breathing.

A knowing smile spreads across Karin's lips as she takes in your words. "Oh, I will be," she says confidently, running a hand through her messy hair. "I'll be waiting for you." Her gaze drifts down to the floor, lost in thought for a moment before looking back up at you again. "Until next time..."

The two of you return to the library together, arm in arm, your steps in sync as if you've been walking down this path for much longer than just a few hours. As the day draws to a close and students begin to file out, Karin leans over to whisper in your ear, "I'll see you tomorrow, Raitz."

Her warm breath sends shivers down your spine, making it impossible not to smile as you nod in agreement, already looking forward to whatever the next day might bring.

With that final gesture, she slips away, disappearing into the crowd outside the school gates. You watch her go with a sense of longing in your heart, already missing the feeling of her body pressed against yours and the sound of her laughter filling the air around you.

As you make your way home yourself, your mind drifts back over the events of the day, replaying each intimate moment like a movie in your head.