The second they stepped out of the bookstore, the summer heat slapped them.
Alex's jeans were still damp from Laura's tongue, his pulse a warzone.
They reached the SUV. He yanked the door....
RING. DAD flashed on the screen.
Alex's stomach dropped. He answered, voice tight. "Yeah, Dad?"
"Laura find her book?"
"Yes. We're heading home now."
"Good. Listen...." Mark's tone shifted to that prouddad generosity. "Laura might need new dresses. Take her to the mall. Buy her whatever she wants. Don't worry about Lina; I'll handle her. Use the card. Spoil my princess."
Alex's cock twisted painfully. If only you knew what your princess actually wants.
"Yes, Dad." He hung up, throat dry.
Laura leaned against the car, arms crossed under her breasts, satin stretching. "What'd Daddy say?"
Alex repeated it word for word.
Her smile turned demonic. "I know the perfect mall."
She slid into the passenger seat, legs spreading just enough for the dress to ride higher. "Drive, brother."
Alex shivered.
This isn't shopping.
This is a hostage situation.
Forty minutes later: Luxe Noir Boutique – Adults Only Floor
The elevator opened to a floor that smelled like money and sex. Dim lights, velvet walls, mannequins in lace and leather. Every dress screamed bedroom only.
Laura grabbed his wrist....nails digging in....and dragged him past racks of:
Micromini silk slips with side ties
Sheer mesh bodysuits
Latex mini dresses with strategic cutouts
Satin sets that were basically expensive lingerie
Alex's voice cracked. "Why are we here?"
Laura held up a crimson scrap of fabric that was 90% strings.
"I need dresses."
She batted lashes. "Daddy's orders."
He tried to backpedal. "I'll wait at the counter. Call me when...."
"No." She stepped so close her nipples brushed his chest through satin. "You're going to tell me exactly how I look in each one."
Her smile sharpened. "Or I'll cry to Dad that big brother refused to buy me clothes. He'll ground you for a month."
Alex swallowed. "Fine. Hurry up."
Laura's eyes glittered. "Oh? So excited to see your sister in sexy dresses, big boy?"
"Laura...."
"Okay, okay." She grabbed six hangers and sashayed to the biggest changing suite.
The door was floortoceiling mirrored, with a plush bench and dim pink lighting.
She left it cracked open. "Wait right here. Don't move."
Alex stood frozen outside, dick already halfhard from anticipation and terror.
Dress 1 – Black Lace Bodysuit
The curtain slid open. Laura stepped out barefoot, bodysuit painted on.
Crotchless. Nipples visible through floral lace.
She turned slowly, back to him, arching so the lace framed her ass like art.
"Well?" She looked over her shoulder. "Does it make you want to rip it off with your teeth?"
Alex's mouth went desertdry.
Say something neutral. "It's… fine."
Laura pouted. "Fine?"
She walked forward until her breasts brushed his chest. "Touch it. Feel the quality."
He didn't move.
She grabbed his hand and pressed it to her lacecovered breast. His thumb grazed her hard nipple. She moaned.
Dress 2 – Red Satin Slip with Side Ties
This one was worse.
The bows on the hips were the only thing holding it together. One tug and she'd be naked.
She straddled the bench facing him, legs spread wide. The hem rode so high he could see she wasn't wearing panties.
Ever.
"Rate it one to ten," she whispered.
Alex's voice was gravel. "Ten."
Laura's smile was pure evil. "Good boy."
Dress 3 – Sheer Black Mesh with Strategic Stars
Only tiny satin stars covered nipples and slit. Everything else: visible.
She pressed her entire body against the mirror, palms flat, ass out. "Look, brother. You can see everything."
Alex's cock was a steel rod.
Dress #4 – Black Liquid Latex Mini with FullFront Zipper
Alex stood outside the curtain, palms sweaty, cock already halfhard from the first three outfits. The mirrored walls reflected his guilt a thousand times over.
Then her voice cut through the velvet silence. "Brother! I need help."
His heart slammed against his ribs. "What?"
"The zipper's stuck. Hurry."
"But someone will...."
"It'll take ten seconds. Now, Alex."
He glanced down the empty hallway: no staff, no customers.
Fuck it.
Alex slipped inside and yanked the curtain shut behind him.
The air stilled.
Laura stood in front of the fulllength mirror, back to him, arms raised. The black latex dress was a second skin: glossy, unforgiving, stretched to breaking point. The zipper ran from the hem between her legs all the way up to her throat.
It was stuck just beneath her breasts.
And her breasts…
They had exploded over the top. The latex had surrendered halfway, unable to contain the sheer weight and fullness of her tits. Two perfect, heavy mounds spilled forward like liquid sin: pale, creamy, veined faintly blue, crowned with darkrose nipples so hard they looked painful. Every breath made them tremble, threatening to burst free completely.
Alex forgot how to breathe.
Laura met his eyes in the mirror, lips curled in a victorious smirk. "You like what you're seeing, big brother?"
His cock surged to full, painful attention. "Yes: no: where's the zipper?"
She pointed lazily beneath the overflowing shelf of her tits. "Right here. It's caught."
Alex stepped forward on autopilot. His shaking fingers found the tiny metal pull. The second he touched it, the backs of his knuckles brushed the soft, hot undercurve of her breast.
Laura's breath hitched.
He tugged.
Nothing.
He tugged harder.
The latex creaked. Her breasts bounced: heavy, hypnotic, slapping softly against each other.
A low, filthy moan slipped from her throat. "Ahh…"
Alex's vision tunneled.
Every failed pull made her tits jiggle harder, nipples grazing his wrists. His cock was a steel bar straining against his zipper, precum already soaking through.
"This thing isn't moving," he growled.
Laura's eyes were glassy with lust. "Then do it properly."
She turned, back to his chest, arching so her ass pressed against his bulge. "Grab my tits from behind: tight. I'll pull the zipper."
Alex's brain shortcircuited.
He obeyed.
His large hands slid around her ribcage and cupped her bare breasts: hard.
The weight was obscene. They overflowed his palms, soft as silk, hot as fever. His fingers sank deep into the plush flesh until he felt her heartbeat thundering against his palms. Her nipples: diamondhard: stabbed into his palms like accusations.
Laura's head fell back against his shoulder with a broken moan. "Yesss… like that…"
He squeezed: brutal, possessive. Her tits spilled between his fingers like dough, skin turning pink under his grip.
She ground her ass against his cock: slow, deliberate circles that dragged her latexcovered cheeks over his denimtrapped length. "Ahh… brother!"
That word: brother: moaned like that, snapped something primal in him.
Alex growled.
His hands turned vicious.
He mauled her breasts like he wanted to bruise them, to mark them, thumbs flicking her nipples so hard she cried out. Laura's body went limp against him, held up only by his grip and the pressure of his cock against her ass.
She turned her face, lips parted.
Their mouths crashed.
No gentleness. Pure hunger.
Tongues tangled, teeth clashing, saliva mixing in a messy, desperate kiss. He devoured her mouth like he was starving. She sucked his tongue like it was his cock.
One of his hands abandoned her breast to fist her hair, yanking her head back farther so he could own the kiss. The other kept squeezing, kneading, twisting her nipple until she sobbed into his mouth.
Laura's hips never stopped.
She ground her ass against his bulge in slow, filthy figureeights: wet sounds coming from where the latex rode up and her bare pussy dragged over his jeans. She was soaked: he could feel it through two layers of fabric.
Alex broke the kiss with a ragged gasp. "This is wrong, sister."
Laura's laugh was breathless, wrecked. "Then why are you trying to rip my tits off?"
She shoved her ass harder against his cock. "Why is your dick throbbing against my ass like it wants to breed me?"
Alex's vision went red.
He spun her around, slammed her back against the mirror: hard. The glass rattled. His hands yanked the zipper down instead of up: all the way to her navel.
Her breasts bounced free completely, heavy and red from his grip.
"You're making this so fucking hard, sister."
Laura's eyes were wild, pupils blown.
She grabbed his wrist, shoved his hand between her legs. The latex had a hidden zipper there too: already open. His fingers met slick, molten heat.
Laura leaned in, lips brushing his, voice a destroyed whisper: "I'm making you fuck me hard, brother."