A Sister-in-Law to Surrender To
Mark sighed reading the text from his brother, he was asking the computer nerd to stop over at his home and help Lisa, his sister-in-law with her ages old computer that she swore she couldn’t part with. At 28, Lisa was the epitome of temptation—fit from her daily gym sessions, with curves that turned heads and a rack that could stop a train. Lisa had briefly dated a plastic surgeon seducing him with a combination of sex and hypnosis that yielded her amazing DD breast implants and a nice payout as she modeled her body for promotional shots for his practice.
Mark hunched over the keyboard in his sister-in-law Lisa’s home office, his fingers flying across the keys as he troubleshot her ancient computer. The screen flickered annoyingly, but he was determined to fix it before his brother got back from his business trip. After greeting him in her robe Lisa went to change, she now hovered nearby, her presence a constant distraction he tried desperately to ignore. Her DD-cup breasts strained against the thin fabric of her low-cut top, the deep V-neck plunging so low it barely contained her ample cleavage. Every time she leaned over to point at the screen, her tits jiggled softly, threatening to spill out. Mark swallowed hard, forcing his eyes back to the monitor. She was his brother’s wife, for Christ’s sake. Off-limits. To compound the problem, she wore a French perfume that was doing more than it should have to his groin.
“So, what’s wrong with it this time?” Lisa asked, her voice a sultry purr that sent a shiver down his spine. She stepped closer, her perfume—wafting over him yet again as he tried to focus on the computer and not his sister-in-law.
“Just some driver issues,” Mark muttered, not looking up. “Should be done soon.”
She chuckled, low and knowing. Lisa had always been bold, flirtatious even, but today felt different, she was more edgy and clearly up to something. She’d caught him staring once or twice before, and the way her eyes lingered on him now made his cock twitch in his jeans. He shifted uncomfortably in the chair, willing his body to behave.
Lisa did in fact have a plan, If she could just get him to nurse from her, to latch onto those full, heavy breasts and suckle like a helpless babe, while under her hypnosis he’d be hers completely. The thought had obsessed her for months, a twisted fantasy born from late-night readings and her own insatiable desires and today, she decided, was the day to put her plan into action.
As Mark typed furiously, Lisa slipped out of the room quietly, her bare feet padding on the carpet only to return moments later, a roll of clear packing wrap clutched behind her back—the kind used for shipping fragile items, strong and sticky. Her heart raced with excitement. She was stronger than she looked; years of weightlifting had toned her arms and core. She could overpower him if she was quick, and she planed to be quick.
Mark didn’t hear her approach, he was too focused on his work, smiling and celebrating under his breath as the computer finally beeped in success. “There, that should—”
In a blur, Lisa lunged from behind. Her arms wrapped around his chest like steel bands, the packing wrap unrolling with a sharp rip. She looped it around his upper body, pinning his arms to his sides in one swift motion. The material was taut and unyielding, sticking to his shirt and binding him tight. Mark gasped, twisting in the chair, but she was already on her second loop, then a third, wrapping from his shoulders down to his elbows. His hands flailed uselessly for a second before being trapped.
“What the fuck, Lisa?!” he yelped, struggling against the restraints. The chair rocked as he tried to stand, but her knee pressed into his back, holding him down. She was fit, her body lean and powerful, and she moved with practiced efficiency. Another layer of wrap sealed his arms immobile, the plastic creaking under his futile pushes.
“Shh, relax, Mark,” she whispered hotly into his ear, her breath tickling his neck. “I know you’ve been wanting this. Just let it happen.”
“What wanting what, Lisa let me go right now!”
He bucked wildly, the chair tipping precariously. “Let me go! This isn’t funny—untie me right now!” Panic edged his voice, but beneath it, a traitorous heat stirred in his groin. Her breasts pressed against his back as she leaned in, soft and warm through the thin top as they nestled the back of his head between them.
Lisa laughed softly, securing the wrap with a final tug. His upper body was completely immobilized, arms glued to his torso. She spun the chair around to face her, her hazel eyes gleaming with triumph. Mark’s face was flushed, his chest heaving as he begged, “Please, Lisa. My brother—your husband—he’ll kill us both. Just stop this.”
She ignored him, stepping back to ire her work. The packing wrap hugged his frame like a second skin, translucent enough to show the outline of his well defined chest muscles straining beneath. “Beg all you want, sweetie. You’re not going anywhere.” With deliberate slowness, she reached into the neckline of her top, fishing out a thin, flexible hose she’d hidden there earlier. It was connected to a small canister of nitrous oxide she’d stashed in her desk drawer—laughing gas, sourced from a shady online supplier for her more adventurous playtimes. The hose was about a foot long, ending in a soft rubber mouthpiece, but she had other plans.
Mark’s eyes widened as she dangled the hose before him. “What the hell is that? Lisa, no—don’t do this!”
“Oh, this? Just a little something to help you unwind,” she teased, her voice dripping with seduction. She inserted the hose deep into her cleavage, wedging it between her massive DD tits. The nozzle pointed upward, nestled right in the valley of her breasts. With a flick, she turned the valve on the hidden canister behind her desk. A faint hiss escaped, the sweet, chemical scent of nitrous filling the air.
“Lisa, please, let me go!” he pleaded, his voice cracking as he heard the hiss of the gas as it begin to seep out, invisible but potent.
She sauntered closer, her shapely hips swaying hypnotically. Gently grabbing the back of his head with one her hand long fingers caressing the back of his head, she slowly pulled him forward, burying his face straight into her cleavage. His nose and mouth plunged between her soft, pillowy breasts, they were warm and soft as they held his cheeks in place. The hose’s end pressing right below his moth and nose the low-cut top offering no resistance; her tits had enveloped him completely, warm flesh smothering his protests.
“Mmm, there we go,” she cooed, holding him tight. “Breathe it in, Mark. Let the gas work its magic.”
He thrashed his head, trying to pull away, but her grip only pushed him further between her tits, the smooth soft flesh serving to only increase his arousal. The packing wrap kept his arms pinned, leaving him helpless and the nitrous flooded his senses—a light, euphoric rush that made his struggles weaken almost immediately. He inhaled sharply through his nose, the gas mixing with the heady scent of her skin, and a dizzying warmth spread through his limbs. “Lisa... stop... I can’t...” His words muffled against her chest, vibrating her sensitive flesh.
She teased him mercilessly, grinding his face deeper into her cleavage. “Feel that? That’s surrender starting, baby. Inhale deeper. Let it fill you up.” Her free hand stroked his hair, fingers taking on a sensual pattern adding a scalp massage to the full facial her tits were giving him. The hose bubbled softly with each breath he took, the gas made his head spin. Colors brightened, his body grew heavy and compliant. He begged again, but his voice slurred, “Please... let me go... no more...”
“No escape for you,” she murmured, her tone soothing yet dominant. “Just my tits, my gas, my control.” She rocked him gently, like a mother with a fussy child, but her eyes burned with lust. The nitrous dulled his resistance, turning panic into a hazy pleasure. His cock hardened fully now, straining against his jeans, betraying him as the euphoria took hold.
Minutes ed—or was it seconds? Time blurred under the gas’s influence. Lisa felt his body slacken, his struggles fading to weak twitches. “That’s it, good boy,” she praised, easing the pressure just enough to let him gasp. But she kept the hose in place, ensuring every breath was laced with the intoxicating vapor.
Finally, she pulled back slightly, her breasts heaving with excitement. Mark’s face emerged, flushed and dazed, lips parted as he panted. His eyes were glassy, pupils dilated from the nitrous. “Lisa... what... I feel... weird...”
“You feel wonderful, now just look into my pretty eyes…” Mark’s gaze locked onto her hazel eyes she was beautiful and under the influence of the gas he was unable to look away.
“Now just let yourself relax and feel how much pleasure this is giving you, that’s it, just let yourself float for me Mark, there’s not need to resist me.”
“My eyes are your world and my tits are your home. You don’t need to resist what’s making you feel so good now do you? That’s it just sink deeper into my hypnosis and the pleasure my tits are giving you.”
“You are feeling drunk on me Mark,” she whispered, cupping one massive tit and lifting it toward his mouth. The top’s fabric stretched taut over her hardened nipple, visible through the sheer material. “Now, its time for you to nurse from me. Suck my tit, Mark. Let go and surrender to the pleasure.”
He shook his head feebly, but the gas made his will crumble. “No... can’t... brother...” Yet his gaze moved down from her eyes locking onto her breast, completely mesmerized by Lisa’s seduction.
Lisa tore down the neckline of her top with a rip, exposing her left breast fully. It bounced free, heavy and round, the nipple erect and begging for attention. Milk? No, she wasn’t lactating, but the fantasy drove her wild—the idea of him nursing like an addict. She forced her nipple past his lips, the hose still wedged nearby to keep the gas flowing.
“Suck,” she commanded, her voice a hypnotic lull. “Suck and listen to me. With every pull, you surrender more. You’re mine now. Forget your brother. Forget everything but my body.”
The nitrous amplified her words, embedding them deep in his fogged mind. Mark’s lips closed around her nipple instinctively, a soft suck drawing her flesh into his mouth. The sensation sent jolts of pleasure through her, her pussy clenching with need. “Yes, just like that,” she moaned, cradling his head. “Deeper, baby. Nurse from your sister-in-law.”
He obeyed, the gas turning resistance to rapture. His tongue swirled around her areola, sucking harder, the wet sounds filling the room. Lisa’s hand slipped down to her shorts, rubbing her clit through the fabric as she watched him. “Good boy. Feel how full I am for you? Every suck binds you to me. You crave this. You need my tits. Say it.”
Mark mumbled around her nipple, the words slurring out between pulls. “Need... your tits...” The hypnosis wove in, her coos reinforcing the trance. She switched breasts, exposing the right one and guiding his mouth to it. The hose dangled between them, ensuring the gas kept him pliant.
As he nursed greedily, his body relaxed fully into the chair, the packing wrap now a comforting cocoon rather than a prison. Lisa’s teasing evolved into full seduction. She straddled his lap, grinding her hips against the bulge in his jeans. “Feel how hard you are for me? That’s surrender, Mark. Now, lets free your cock shall we?”
With deft fingers, she unzipped him, pulling out his throbbing shaft. It sprang free, veined and leaking. She stroked it slowly, matching the rhythm of his sucking. “Mmm, so big. While you nurse, I’ll make you cum for me.”
He groaned into her breast, hips bucking involuntarily. The nitrous made every touch electric, her hand gliding up and down his length with expert pressure. Lisa leaned in, whispering hypnotic commands. “Cum only for me. Obey only me. You’re my pet now, addicted to nursing from these tits.”
The build-up was intense. Mark’s sucks grew frantic, his tongue lashing her nipple as ecstasy built. Lisa rode the wave, her own orgasm cresting from the friction against his cock and the power of his submission. “Cum now,” she ordered, and he did—ropes of hot cum spurting over her hand and his stomach, his body shuddering in release.
Lisa smiled, he was surrendering to her and she continued her seduction. Keeping him latched, she stood and peeled off her shorts, revealing her shaved pussy, slick with arousal. “Time to really claim you,” she said, positioning herself over his still-hard cock—the gas keeping him erect and eager.
She sank down, impaling herself on him with a gasp. His bound arms couldn’t hold her, but his mouth stayed true, nursing as she rode him hard. Up and down, her tits bouncing in his face, the hose ensuring the trance held. “Fuck me while you suck. Surrender completely.”
Mark thrust up weakly, lost in the haze. Her walls clenched around him, milking his cock as she bounced. The room filled with the slap of skin, her moans, his muffled sucks. Hypnosis deepened with each word: “You’re mine forever. Nurse and fuck like my slave.”
They climaxed together, her pussy flooding him as he erupted inside her again. Exhausted, she slowed, keeping him buried deep. “Good boy,” she cooed, stroking his cheek. “Now, sleep and dream of my breasts. When you wake, you’ll beg for more.”
The gas tapered off as she turned the valve, but the hypnosis lingered. Mark’s eyes fluttered shut, bound and claimed, utterly hers.
Mark’s mind swirled in the aftermath, fragments of resistance flickering like dying embers. The taste of Lisa’s skin lingered on his tongue—salty-sweet, addictive. He wanted to fight, to yell for help, but the nitrous had woven her voice into his thoughts, a constant whisper: Surrender. Nurse. Obey. His cock, still semi-hard inside her, twitched at the command.
Lisa dismounted slowly, cum dripping from her pussy onto his thigh. She ired the mess, then grabbed a fresh roll of packing wrap from the desk. “Can’t have you escaping now,” she murmured, wrapping his legs together next, binding ankles to thighs in tight loops. He was a bundled package now, helpless on the chair as he began to wake.
“Lisa... please...” His voice was weak, the plea half-hearted. She silenced him with a deep kiss her tongue exploring his mouth as he sighed and responded to her kiss.
Lisa broke their kiss brining her tit to his mouth and smiling as he latched on, drawing deep pulls that made her sigh in pleasure. As he nursed, she cleaned his cock with a warm cloth, then teased it back to full hardness with feather-light strokes. “See? You can’t get enough. That’s the hypnosis working. Every suck erases your old life.”
She spent the next hour like that—alternating breasts, feeding him sips of water and giving him more nitrous from a hidden reserve to prolong the high. Her hands explored his body, pinching nipples, scratching nails down his chest through the wrap. Mark’s begs turned to moans, his hips straining against the bonds for more friction.
“Beg to fuck me again,” she commanded, her eyes locking onto his dilated ones.
“Please... fuck me...” he whispered around her tit, shame burning even as arousal surged.
Lisa grinned, unwrapping just his lower body enough to free his legs. She pushed him to the floor, the carpet soft under his bound upper half. Straddling his face now, she ground her pussy against his mouth. “Lick first. Taste your surrender.”
The gas made him compliant; his tongue darted out, lapping at her folds, circling her clit. She rode his face, tits swaying, cooing hypnotic phrases. “Good slave. Lick and listen: You live for my pleasure. Nursing is your purpose. Cum without touch when I say.”
He devoured her, slurping her juices, nose buried in her scent. Her orgasm crashed over her, flooding his mouth as she cried out. True to her words, his cock pulsed, spurting cum onto his stomach untouched—a testament to her control.
Satisfied, she rebound his legs and dragged him to the bedroom, the computer forgotten. There, she stripped fully, her fit body glistening with sweat. She unwrapped his arms partially, only to rebind them above his head to the bedposts with more wrap. “Now, the real nursing begins.”
“Lisa, please….please I can’t take any more….”
Lisa climbed atop him, positioning her breasts over his face. No hose this time—the gas’s effects lingered, amplified by her voice. “Suck both, baby. Left, then right. With each pull, you fall deeper.”
His brief resistance shattered and he nursed ravenously, alternating as ordered, his cock sliding into her welcoming pussy once more. She fucked him slow and deep, building tension. Lisa’s voice became a sensual hypnotic coo “You’re addicted. My tits own you. Say it.”
“Your tits own me,” he gasped between sucks, thrusting up to meet her.
Hours blurred into a cycle of nursing, fucking, and binding. She edged him repeatedly, denying release until he begged in full submission.
“I’m yours, Lisa. Let me cum inside you while I nurse, please?”
Finally, she allowed it, riding him to mutual ecstasy. As he filled her, she whispered the final command: “When your brother returns, you’ll hide this from him. But you’ll seek to find ways to come to me, to nurse in secret and fuck me whenever I call.”
Mark nodded, broken and blissful, the hypnosis sealing his fate.
In the days that followed, Lisa’s hold tightened. Mark returned frequently, the compulsion Lisa installed was irresistible. One evening, she greeted him nude, the hose ready between her tits. “Kneel and inhale,” she ordered and without thought Mark obeyed.
Lisa instructed him to take her doggy style and he pounded her, the gas making each stroke euphoric. Her ass cheeks slapped against him, her moans hypnotic. “Cum in me slave make me yours— oh sorry, no make you mine.”
He exploded, filling her, collapsing as she milked every drop.
On yet another night, she came up with a twist: blindfolding him with wrap, then nursing him in the dark, her voice the only guide. “Feel my pussy clench around your tongue. Lick until I squirt.”
He did, face buried, sucking her clit like a nipple. She gushed over him, then rewarded with a tit in his mouth and a handjob, cum spraying as he nursed.
The fantasies escalated. She bound him spread-eagle, teasing his cock with her breasts, tit-fucking him while he begged. “Nurse from one while I stroke with the other.” Pre-cum lubed the valley, her tits enveloping him until he came across her chest, then licked her clean under hypnosis.
Weeks in, the brother suspected nothing, but Mark was lost—her slave, a nursing addict, and Lisa’s private fucking machine. The computer fix was a distant memory; now, his world was her breasts, her gas, her unbreakable bonds. His sister-in-law owned him body and soul, and he wouldn’t have it any other way.