After-Hours Plug

The gym lights were already dimming when I spotted her again. Sarah, my married neighbor from two doors down, was bent over the yoga mats in tight black leggings that hugged every curve of her juicy ass. The outline of something round and thick pressed against the fabric right between her cheeks. My cock twitched hard. I’d been half-hard for her all week, wondering what that secret bulge really was.

She straightened up, caught my stare, and smirked. The place was empty except for us. The last trainer had just locked the front doors and left us the keys to close up ourselves.

“Hey, Mark,” she said, voice low and teasing. “You gonna stand there staring at my ass all night or actually come talk to me?”

I walked over, pulse hammering. “That plug still in you, Sarah? The one I can see pushing against your leggings right now?”

Her cheeks flushed but her eyes sparkled. She bit her lip. “Been wearing it since lunch. Hubby’s out of town again. Thought it might make leg day… interesting.”

“Fuck,” I breathed. My hand brushed her hip. She didn’t pull away. Instead she arched her back, pressing that plugged ass toward me.

The explicit heat hit fast. I slid my palm down the curve of her ass, feeling the firm silicone base of the butt plug through the thin fabric. She moaned softly, pushing into my touch.

“God, it’s been stretching me all day,” she whispered. “Every time I squat I feel it so deep in my ass. Makes my pussy drip.”

I hooked my fingers into her waistband and peeled the leggings down just enough to expose her bare cheeks. The black jeweled plug winked under the low lights, buried tight in her tight little anus. Her shaved pussy lips were glistening, swollen and wet.

“Such a naughty married slut,” I growled, giving her ass a firm spank. The sound echoed through the empty gym.

She gasped, then laughed breathlessly. “Spank me again. Please. I’ve been thinking about your cock all week while this thing fucks my ass with every step.”

I dropped to my knees behind her, spread her cheeks wider, and dragged my tongue over her dripping pussy while my thumb pressed on the plug, pushing it deeper. Sarah cried out, gripping the weight bench in front of her.

“Oh shit, Mark… your tongue feels so good. Lick my clit while you play with my plugged ass.”

I sucked her swollen clit between my lips, flicking it fast, while I twisted the plug in slow circles. Her legs trembled. Juices ran down my chin. The musky-sweet smell of her arousal mixed with the clean sweat of the gym.

“Fuck me,” she begged, voice cracking. “I need your cock in my pussy right now. Leave the plug in. I want to feel both holes full.”

I stood, yanked my shorts down. My thick cock sprang free, already leaking. I rubbed the head up and down her soaked slit, teasing.

“You sure your husband would be okay with his neighbor balls-deep in his wife’s married cunt?” I asked, voice rough.

“He doesn’t fuck me like this anymore,” she panted. “So shut up and pound me.”

I thrust in hard. Her pussy clenched around me like velvet fire, the pressure of the butt plug making her feel impossibly tighter. Sarah moaned loud, the sound bouncing off the mirrors. I grabbed her hips and started fucking her with deep, punishing strokes, the base of the plug bumping against my lower abs every time I bottomed out.

“Harder, Mark! Fuck my married pussy harder!”

I reached around and rubbed her clit while I railed her. The wet slap of skin on skin filled the gym. Her tits bounced inside her sports bra. I could feel the plug shifting inside her ass with every thrust, driving her wild.

She came first, sudden and violent. Her pussy spasmed, squirting a little down my balls. “I’m cumming! Oh god, I’m cumming so hard with this plug in my ass!”

I didn’t stop. I pulled out, spun her around, and lifted her onto the bench so she faced me. Legs spread wide, plug still firmly lodged in her ass, she grabbed my slick cock and guided it back inside her.

“Fill me up,” she demanded, eyes glassy with lust. “I want to feel your cum leaking out of me when I walk home.”

I fucked her face-to-face now, sucking on her neck, biting her shoulder while my hips slammed forward. The plug made her so tight I could barely last. Her nails dug into my back.

“Cum inside me, Mark. Please. Breed my cheating pussy.”

That did it. I buried myself to the hilt and unloaded, thick ropes of hot cum flooding her married cunt. She kissed me hard, moaning into my mouth as her second orgasm hit.

We stayed locked together, breathing hard, sweat dripping. The plug was still snug in her ass, my cum already starting to trickle out around my softening cock.

Sarah smiled lazily, kissed the corner of my mouth. “Next time I’ll let you pull the plug out and fuck my ass instead. But only if you promise to put a bigger one in after.”

I laughed, still buried inside her. “Deal, neighbor.”