The textbook slipped from Marina's fingers as the door creaked open without warning. Late afternoon sunlight streamed through the window, catching the dust motes swirling around Takumi's silhouette.
Her breath caught when his dark eyes immediately dropped to where her oversized sweater stretched taut across her famously voluptuous chest, the fabric straining against the weight of her heavy breasts with every shallow breath she took.
'That promise...' The memory of her whispered vow—use me instead!—sent a familiar pulse of heat straight to her core.
She watched through lowered lashes as Takumi crossed the room in three predatory strides, his fingers already tracing the hem of her pleated skirt. The soft sound of fabric sliding up her thighs echoed loudly in the quiet room.
"Senpai," he murmured against the sensitive skin behind her ear, the honorific dripping like honey from his tongue.
The word shouldn't have made her wet—she was his senior after all—yet her cotton panties grew damp instantly.
Her full lips parted in a shaky exhale as she reached for his belt with trembling fingers, the cool metal buckle clicking open sounding obscenely loud.
The first touch of her manicured nails against his hardened length drew a guttural groan from Takumi.
Marina's breasts swayed heavily as she leaned forward, her nipples already pebbling beneath the sweater fabric.
She could smell him—that intoxicating musk of salt and skin that always made her mouth water. When her tongue first flicked out to taste the bead of precum at his tip, Takumi's fingers tightened in her hair.
"That's it, Senpai," he coaxed, his thumb tracing her bottom lip. "Show me how well you protect them."
The reminder of her purpose sent another rush of arousal soaking through her panties. Marina opened wider, her plush lips stretching obscenely around his girth as she took him deeper, her large hands cupping his balls with practiced ease.
Marina's knees ached against the hardwood floor, but the discomfort only heightened her arousal as she serviced Takumi with single-minded devotion.
Sulrp… Sulrp… Sulrp… Lick…
Her massive breasts pressed against his thighs with each bob of her head, the soft flesh spilling from her stretched sweater neckline. Sweat beaded along her hairline as she worked him relentlessly, her tongue swirling along the thick vein underneath while her hands massaged the base.
"Gurlp… Slurp… Smooch… Hnngh~"
The sounds of her throat struggling to accommodate his girth filled the room. Saliva dripped from her stretched lips, streaking down her chin and onto her heaving chest.
Each time she came up for air, Takumi murmured that damnable honorific—"Good Senpai"—and her walls clenched around nothing in response.
Her inverted nipples rubbed raw against the rough fabric of her sweater with every movement, the dual stimulation making her lightheaded with need. When Takumi suddenly fisted his hands in her hair and thrust upward, her gag reflex triggered instantly—tears springing to her eyes as her throat bulged obscenely.
"Airi should watch this," Takumi growled, using his grip to tilt her head back. "The always modest older sister, reduced to a drooling mess."
Marina's humiliation burned hot in her belly, only making her wetter. Her fingers dug into his thighs as she willed herself to relax, to take him deeper. The "Glorp... Glorp..." sounds of her throat accepting him sent vibrations straight to his cock, his hips jerking instinctively.
"That's it," he praised, his voice thick with arousal. "Take it all senpai~."
Her muffled whimpers only encouraged him to move faster, the wet slap of skin against skin joining the symphony of lewd noises. Marina's vision blurred as oxygen deprivation set in, her body trembling with the effort to please.
Until the world spun suddenly, Takumi hauling her up by her hair in one swift motion The abrupt shift tore a gasp from her lips just before she was tossed onto the desk. Textbooks and pens clattered to the floor as her back hit the wooden surface, her sweater tearing at the collar to finally free her legendary breasts.
They bounced heavily with the impact, her inverted nipples already stiff and begging for attention.
"AAAHN—!"
Marina's scream shook the windowpanes as Takumi sheathed himself inside her in one brutal thrust. Her nails clawed at the wood beneath her, her voluptuous body arching off the desk as she struggled to accommodate his girth. The stretch burned deliciously, her dripping walls fluttering around him in erratic pulses.
"S-So big—!" she babbled, her enormous chest heaving with each ragged breath.
Takumi paused, allowing her a moment to adjust before rolling his hips experimentally. The desk creaked dangerously beneath them as Marina's legs locked around his waist, her plush thighs trembling with effort. Her breasts swayed hypnotically with each shallow thrust, their heavy weight mesmerizing.
"Senpai's pussy grips me so tight," Takumi murmured, his large hands palming her chest roughly. "Like she's afraid I'll leave."
Marina's resulting whimper was cut off when he pinched both nipples simultaneously, the sharp pain-pleasure making her walls clamp down violently. Her back arched off the desk, her full lips parting in a silent scream as her first orgasm crashed over her unexpectedly.
"HNNNGYAAAA—!"
The sound could have woken the dead. Takumi groaned as her violent contractions milked him desperately, his thrusts growing erratic in response.
SLAP! SLAP! SLAP! SLAP!
When his fingers found her clit, rubbing tight circles, Marina's entire body seized—her massive breasts flushing red as another scream tore from her throat.
"MNNGGGGHH—!"
"Come for me, Senpai," Takumi growled, his pace turning punishing. "Show me why you're the best."
Marina could only sob in response, her vision whiting out as pleasure overwhelmed her completely.
Takumi leaned back just enough to fully appreciate the magnificent bounce of Marina's breasts with each thrust.
Their heavy weight spilled through his fingers like overripe fruit, the inverted nipples now stiffened into tight little peaks from constant stimulation.
A thin sheen of sweat made them glisten in the fading afternoon light, their natural sway hypnotizing as they moved in counterpoint to their joined hips.
"Nnngh! T-They are t-too sensitive—!" Marina wailed when he pinched both nipples simultaneously, her back arching off the desk.
Yet her hips kept rolling to meet his, her body's betrayal evident in the way her dripping walls fluttered around him. The sound of their slick skin slapping together filled the room—a vulgar rhythm punctuated by Marina's increasingly ragged moans.
SLAP! SLAP! SLAP! SLAP!
"Ahh…♡ Ahhh…♡ Ahh…♡"
Takumi ducked his head to capture one stiff peak in his mouth, his tongue swirling roughly around the areola before sucking hard enough to make her shriek.
The sharp scent of her arousal intensified as another gush of wetness coated his thrusting length, her massive chest heaving against his face with each gasping breath.
"That's it," he murmured against her heated skin, his teeth grazing the abused nipple. "Senpai's tits were made for this~."
Marina could only nod frantically, her fingers tangling in his hair to hold him closer.
The dual stimulation—his cock stretching her wide while his mouth worshipped her breasts—sent pleasure coiling tight in her belly. She could feel another climax building already, her thighs trembling with the effort to keep pace with his relentless thrusts.
Marina's second orgasm approached like a storm, her breathing turned shallow, her nails scored red lines down Takumi's back, her massive breasts flushed a deep pink.
When it hit, her entire body bowed off the desk violently, her scream shaking the windowpanes. "I-I'm cumm—HNNNGYAAAA!"
Her walls clamped down on Takumi's cock in rhythmic pulses, milking him with desperate intensity.
The sensation pulled a guttural groan from his chest as he pistoned into her through the convulsions, each thrust dragging against her oversensitive flesh.
THRUST! THRUST! THRUST! THRUST!
Marina's vision whited out as wave after wave of pleasure crashed through her, her enormous chest heaving with exertion.
"Fuck!!" Takumi gritted out, his hips stuttering. "Take it all, Senpai!"
His release surged hot and thick inside her, painting her fluttering walls with each powerful spurt. Marina whimpered at the scalding fullness, her swollen clit throbbing in time with his pulsing cock.
The desk creaked dangerously beneath them as Takumi buried himself to the hilt, his cum flooding her womb until her flat stomach bulged slightly from the volume.
"SPURT! SPURT! SPURT! SPURT!"
The lewd sounds of their joining filled the room—Marina's wet pussy still fluttering around him, Takumi's heavy breaths mingling with her oversensitive whimpers.
When he finally pulled out, a thick stream of their mixed release leaked onto the ruined homework below, the sticky puddle seeping through page 112's exercises.
....
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