Sister-in-Law's Blackmail Fuck

I had affair with my sister in-law one time about four years ago and we both were married and we kept it a secret and one day she came up to me and we need to make love again and I told her no way and then she said well I guess I'm going to tell your wife and then she i need your cock in me

Four years had passed since that one reckless night with my sister-in-law, Lisa. We'd both been married—her to my brother, me to Sarah—and we'd buried the secret deep. Her tight body under mine in that motel room, her moans muffled against my shoulder as I pounded into her, dripping wet and begging for more. It was raw, forbidden heat we'd sworn never to repeat. Then she showed up at my office unannounced, locking the door behind her with that predatory smirk. Mid-thirties now, curves sharper in a pencil skirt hugging her hips, blouse straining over full tits. "We need to fuck again," she said, voice low and direct, stepping close enough I could smell her perfume mixed with arousal. "No way, Lisa. That was once. It's over." I leaned back in my chair, trying to ignore the twitch in my pants. She laughed softly, pulling out her phone, thumb hovering over Sarah's contact. "Guess I'll tell your wife everything then. How you split me open with that thick cock, made me cum so hard I screamed your name." My pulse hammered. She stepped between my legs, yanking my tie to pull me forward. Her free hand slid down, palming my growing bulge through my slacks. "I need your cock in me. Right now. Or she knows." Her fingers unzipped me, hot breath on my neck as she fished out my hardening shaft, stroking firm and slow.

Her grip tightened on my cock, thumb circling the slick tip as pre-cum beaded under her touch. I groaned, hips bucking involuntarily into her fist, the office chair creaking under us. "Fuck, Lisa—stop," I hissed, but my hands betrayed me, grabbing her ass through that tight skirt, squeezing the firm flesh. She shoved her phone aside, straddling my lap in one fluid motion, skirt hiking up to reveal lace panties soaked through. Grinding down, she dragged her wet heat along my length, coating me. "Liar. You want this pussy clenching around you again." Her blouse buttons popped open under my fumbling fingers, spilling heavy breasts into my face. I latched onto a stiff nipple, sucking hard, teeth grazing as she moaned low, rocking faster. The threat hung thick, but her dripping slit nudged my cockhead, parting lips, teasing entry. One thrust, and she'd swallow me whole.

"And then she said, 'Take my panties off and lick and suck my pussy like you did before.'" Her words hit like a command, eyes locked on mine, daring refusal. I gripped the soaked lace, yanking it aside then down her thighs, exposing her shaved slit, glistening and swollen. She lifted slightly, kicking them free, then settled back, thighs spreading wide over my lap. I slid down, chair protesting as I pulled her hips forward. Kneeling between her legs on the office carpet, I dove in—tongue flat against her folds, lapping up her tangy wetness from clit to entrance. She gasped, fingers twisting in my hair, grinding against my mouth. "Fuck, yes—like that," she panted, as I sucked her clit between my lips, flicking hard, then plunged my tongue deep inside her pulsing heat. Her juices smeared my chin; she bucked, chasing the pressure, walls fluttering already. My cock throbbed untouched, leaking onto the floor.

Her thighs clamped my head, heels digging into my shoulders as she rode my face. "Suck on it hard so I can come in your mouth," she demanded, voice raw, hips snapping forward. I obeyed, sealing my lips around her swollen clit, sucking with fierce pressure—tongue battering the nub while two fingers plunged knuckle-deep into her clenching channel. She cried out, back arching off the chair, nails scraping my scalp. Her walls spasmed, gripping my digits as fresh gush coated my hand. "Don't stop—fuck, right there!" Inner muscles fluttered wildly, building, her breaths ragged gasps. I curled my fingers, stroking that ridged spot inside, humming vibrations against her clit. Tension coiled in her body, thighs quivering. My cock ached, balls tight, pre-cum pooling beneath me. She was seconds from shattering, flooding my tongue.

Her cry peaked into a guttural moan, body seizing as orgasm ripped through her. Hot nectar flooded my mouth, tangy and thick, spilling over my tongue while I swallowed greedily, lips locked tight on her pulsing clit. Fingers pumped relentlessly inside, milking every spasm from her gripping walls. "Fuuuck—yes, drink it all!" she snarled, grinding down, thighs vise-like around my ears. Waves crashed on, her hips jerking erratically, coating my face in slick shine. Finally, she slumped, chest heaving, fingers loosening in my hair. But her eyes burned down at me, wicked gleam unbroken. "Good boy. Now stand up—pants off. I want that cock buried in me while I'm still twitching." I rose on shaky legs, unzipping fast, shaft springing free, veined and dripping. She grabbed my hips, guiding the head to her soaked entrance.

She yanked my shirt over my head, nails raking my chest as I kicked off pants and boxers. Her own top hit the floor next, heavy breasts spilling free, nipples stiff peaks. We collided skin-to-skin, her sweat-slick curves pressing into me. "Give me your big cock now," she growled, eyes feral, legs spreading wide on the chair's edge. I gripped her thighs, slamming forward—thick head breaching her soaked folds, stretching her fluttering walls inch by inch. She gasped, back bowing, heels hooking my ass to pull me deeper. Inch after throbbing inch sank in, her heat vise-tight from the aftershocks, rippling around my girth. "Fuck—yes, fill me," she hissed, nails biting my shoulders. I bottomed out, balls slapping her ass, grinding slow to feel every pulse. Her inner muscles clenched, milking me, hips bucking up to meet the first hard thrust.

As she was riding me up and down and I noticed she was taking pictures of us and I yell you bitch and then she said we going to fuck once a week

She flipped us with a savage twist, shoving me back onto the chair. Straddling my lap, she impaled herself on my cock, slick walls swallowing every inch as she rode hard—up and down, tits bouncing wildly, ass slapping my thighs with wet smacks. "Fuck, you're so deep," she panted, grinding her clit against my base, pace relentless. I thrust up to match her, hands bruising her hips, lost in the vise of her heat. Then—flash. Her phone hovered, capturing the plunge of my shaft into her stretched pussy, our joined bodies glistening. "You bitch!" I yelled, fury spiking through the haze, grabbing for it. She laughed low, snapping another, tossing hair back. "We're gonna fuck once a week now. These ensure it—my good boy, on demand." She pocketed the phone, slamming down harder, clenching to pull a groan from me.

I snarled, thrusting up viciously to wipe that smug grin off her face, cock spearing deep into her clenching core. "Delete them, now," I growled, fingers digging into her ass cheeks, spreading them wide as I pounded upward. She moaned, unfazed, rolling her hips in tight circles, juices dripping down my balls. "No chance. You love this—being my secret fucktoy." Another grind, her swollen clit rubbing my pelvis, walls fluttering wildly. Rage fueled my hips, slamming her down onto me with bruising force—wet slaps echoing, her heavy tits smacking my chest. I snatched at her pocket, but she pinned my wrists overhead, leaning in, breath hot on my neck. "Once a week, minimum," she whispered, nipping my earlobe, then arched back—riding faster, chasing her peak while I throbbed helplessly inside her.

Her pussy spasmed hard, flooding me—creamy cum gushing out, soaking my balls and dripping onto the chair in hot rivulets. She threw her head back, nails raking my shoulders, a raw cry ripping from her throat as she clenched around my cock like a fist. "Fuck, yes—take it all," she gasped, grinding through the waves, her slick release making every thrust sloppy and obscene. I bucked wildly beneath her, the wet heat overwhelming, rage crumbling under the pulse of her orgasm milking me. At that point, I gave in—surrendering to the rhythm, hands sliding up to grip her bouncing tits, thumbs circling stiff nipples. She smirked down, victorious, slowing to a torturous roll. "That's it, my good boy. Admit you crave this—once a week, my cock-hungry slut." I groaned, hips jerking involuntarily, buried balls-deep in her quivering depths, the fight draining away with every creamy pulse.

Her walls clamped down like a vice, dragging me over the edge. I roared, surging up hard—cock erupting in thick ropes, flooding her spasming pussy, our mixed cum overflowing in sticky spurts down my shaft. "Fuck—yes, fill me," she hissed, grinding deep, her clit pulsing against me as aftershocks ripped through us both. Sweat-slick skin slapped one last time, bodies locked, trembling in unison. She finally stilled, breath ragged, then slid off with a wet pop—our cream trickling from her swollen lips onto my thigh. Without a word, she grabbed her clothes, yanking on panties that trapped the mess inside, then bra and skirt, buttoning her blouse coolly. Straightening, she shot me a wicked grin, lips still swollen from the ride. "See you next week—don't delete those pics." Door clicked shut behind her, leaving me spent, cock twitching in the cooling puddle.