Wife's Best Friend Begs for My Secret Thrusts

Mark had always known Lisa was trouble. Sarah's best friend since college, she was the wild one—the girl who turned every girls' night into a booze-fueled confessional. With Sarah away on her week-long work conference in Chicago, Lisa had begged to crash at their place for the weekend. "I hate being alone in my shitty apartment," she'd whined over the phone, her voice dripping with that playful lilt that made Mark's cock twitch despite himself. Sarah, ever the loyal wife, had insisted: "She's family, babe. Be nice to her."

Nice. Right. Lisa showed up Friday evening with a duffel bag and a bottle of tequila, her tight yoga pants hugging an ass that could make a priest sin. She hugged Mark too long at the door, her full tits pressing into his chest, nipples hard little points through her thin tank top. "Missed you, big guy," she purred, pulling back with a wink. Sarah waved goodbye from the airport shuttle that morning, oblivious.

That first night, they ordered pizza and cracked open the tequila. Lisa lounged on the couch in a cropped tee and shorts so tiny they rode up her thighs, flashing the edges of her lacy thong. She laughed at Mark's dumb jokes, touching his arm, her fingers lingering. "Sarah's so lucky," she said, biting her lip. "You two fuck like rabbits. I hear everything through those thin walls when I crash here."

Mark choked on his beer. "What?"

She grinned, leaning in, her breath hot with liquor. "Don't play dumb. Last time I stayed over, after that barbecue? I was in the guest room, finger-fucking my pussy to the sound of you railing her. Those secret thrusts of yours—god, the way you grunt and slam deep. I came so hard imagining it was me."

His cock stiffened instantly, betraying him. He shifted on the couch, but Lisa noticed, her eyes dropping to the bulge in his jeans. "See? You like me knowing your dirty little secret."

Saturday morning, Mark woke with morning wood, Sarah's side of the bed empty and cold. He jerked off in the shower, picturing Lisa's ass, hating himself for it. Downstairs, she was already up, wearing nothing but a skimpy silk robe that barely tied at her waist. The fabric gaped open as she bent over the coffee maker, revealing pert C-cup tits with rock-hard pink nipples and a shaved pussy peeking from between smooth thighs. No panties. No bra. Just pure fucking temptation.

"Morning, handsome," she said, turning with two mugs, her robe slipping off one shoulder. "Sleep well? Dream of pounding my tight little hole?"

"Lisa, what the fuck?" Mark growled, but his eyes devoured her. She sauntered over, hips swaying, and handed him the coffee, brushing her bare tits against his arm.

"I've had a crush on you forever, Mark. Sarah's my bestie, but you're the one I fantasize about. Those secret thrusts—I want them. In me. Betraying her with me." She untied the robe fully, letting it pool at her feet. Naked, flawless—toned legs, flat stomach, a juicy ass begging to be grabbed. Her pussy lips glistened already.

He backed up against the counter, cock throbbing painfully in his boxers. "This is crazy. Sarah—"

"Is gone." Lisa closed the distance, her hand sliding down his chest to palm his bulge. "And I'm here, dripping for you. Feel how wet?" She grabbed his hand, forcing it between her thighs. Her cunt was soaked, hot folds parting under his fingers. She moaned, grinding against him. "Fuck me like you fuck her. Those powerful thrusts I've heard. Make me your cheating slut."

Tension crackled like lightning. Mark's resolve crumbled as she dropped to her knees right there in the kitchen, yanking down his boxers. His thick eight-inch cock sprang free, veiny and leaking pre-cum. "Holy shit," she whispered, eyes wide with hunger. "Sarah wasn't kidding about this monster."

Before he could protest, Lisa swallowed him whole. Her mouth was a wet vacuum—lips stretching around his girth, tongue swirling the underside as she deepthroated him in one filthy plunge. Gagging wetly, she bobbed, slurping noisily, drool spilling down her chin onto her tits. "Mmmph, fuck my throat," she gasped, popping off to stroke him slickly. "Betray your wife with me, Mark. Feed me this cock, then wreck my tight pussy. I've wanted it so bad—your secret thrusts stretching me while Sarah's clueless."

Mark's hands tangled in her hair before he could stop himself, hips snapping forward to bury his cock back down her greedy throat. Lisa moaned around him, the vibration shooting straight to his balls as she took every inch, nose pressed to his trimmed pubes. He fucked her face with short, brutal thrusts, the same ones she claimed to crave, watching spit-slick strings connect her stretched lips to his shaft each time he pulled back.

She pulled off with a wet gasp, eyes glassy and cheeks flushed. "God, yes—use me. I'm thirty-two and I've never needed a cock this bad. Sarah's away building her career while you fill her best friend." Her fist pumped him hard, thumb smearing the precum over his swollen head. "Bend me over this counter and give me those secret thrusts. Stretch my married-man's pussy until I scream."

Mark hauled her up by the arms, spun her around, and shoved her chest flat against the cool granite. Her ass arched high, perfect and round, pussy lips puffy and dripping a thin trail down her inner thigh. He kicked her feet wider, notched his fat cockhead against her entrance, and slammed home in one savage stroke. Lisa's scream tore through the kitchen as her cunt clenched like a fist around him, impossibly tight and scorching hot.

"Fuck—so deep already," she sobbed in pure lust, pushing back to take more. "That's it, cheat on her with me. Ruin this pussy. I've fingered myself raw thinking about this exact moment."

He gripped her hips hard enough to bruise and started pounding, long powerful strokes that made her tits slap against the counter edge with every impact. Wet smacks filled the air, her juices coating his balls as he drove balls-deep again and again. Lisa's moans turned filthy and continuous, begging between gasps. "Harder—those secret thrusts, Mark. The ones that make Sarah cream. Give them all to me. Make me your dirty secret."

Mark reached around, found her swollen clit, and rubbed tight circles while he hammered her G-spot. Her walls fluttered wildly. "I'm gonna cum on your cheating cock," she cried. "Don't stop—fill me while I milk you." Her orgasm hit hard; she locked up, cunt spasming in rhythmic waves that nearly pulled him over the edge. Mark gritted his teeth and fucked her through it, chasing his own release, the wet heat of her climax soaking his thighs.

He pulled out suddenly, flipped her around, and lifted her onto the counter. Lisa wrapped her legs around his waist immediately, heels digging into his ass. He sank back inside her dripping hole and resumed the deep, claiming thrusts, watching her face contort in ecstasy. Her nails raked his shoulders. "Look at us," she panted. "Your wife's best friend, thirty-two years old and stuffed full of her husband's cock while she's in Chicago. Does it feel better knowing how wrong this is?"

"Shut up and take it," Mark growled, but the words only made her clench harder. He leaned in and sucked one stiff nipple into his mouth, biting lightly as he pistoned into her. Lisa's head fell back, another orgasm building fast. He could feel it in the way her pussy started fluttering again, in the desperate roll of her hips meeting every stroke.

He hooked her knees over his elbows, folding her open so he could drill even deeper. The new angle made her scream his name. "Right there—secret thrusts right fucking there! I'm yours, Mark. Use this cunt whenever Sarah's gone. I want your cum dripping out of me all weekend."

Mark's control shattered. He slammed home one final time and erupted, thick ropes of cum blasting deep into her spasming pussy. Lisa came with him, wailing as her walls milked every pulse, her juices mixing with his seed until it leaked out around his still-throbbing shaft in creamy white rivulets. He kept grinding through the aftershocks, making sure every drop stayed buried inside her.

They stayed locked together, breathing hard, sweat cooling on their skin. Mark finally eased out; a heavy glob of cum immediately spilled from her well-fucked hole onto the counter. Lisa scooped some up with two fingers and sucked them clean, eyes locked on his. "Mmm. Better than I ever imagined."

She hopped down on shaky legs, pressed a sticky kiss to his mouth, then dropped to her knees again. Her tongue cleaned the remaining mess from his half-hard cock, gentle and thorough, before she stood and retrieved her discarded robe without tying it. "Guest room has a big bed," she said, voice husky. "And I've got two more days before Sarah gets home. I want those thrusts in every hole, Mark. Tonight you fuck my ass while I tell you how I used to listen through the wall."

Mark's cock twitched back to life at the promise. He scooped her up, carried her toward the stairs, already hard enough to go again. Lisa laughed against his neck, legs locked around him. "That's my dirty secret husband. Keep giving me exactly what I begged for."

By Sunday night the house reeked of sex. They had fucked on the couch, in the shower, bent over the guest-room dresser while Mark watched her reflection bounce. Each time Lisa had demanded those same secret thrusts, louder and filthier, until Mark came so deep inside her he lost count. When her phone finally buzzed with Sarah's landing text Monday morning, Lisa kissed him slow and filthy one last time at the door, robe barely closed, cum still slowly leaking down her thigh.

"Same time next conference," she whispered. "And maybe I'll leave my panties in your drawer so you can remember how hard you cheated while you fuck your wife." She winked, blew him a kiss, and sauntered out to her car, leaving Mark standing in the kitchen with the scent of her still on his skin and the knowledge that the next time Sarah left town, those secret thrusts already had a willing home.