The night was endless, a combo of sweaty sheets and racing thoughts. Jenna lay beside Mark, staring at the ceiling fan as it made lazy rotations in the darkness, casting shifting shadows across the bedroom. Every time she closed her eyes, the images came flooding back with vivid, unwanted clarity.

The weight of Alex's cock in her hand, that heavy, impossible girth that her fingers couldn't fully encircle. The way it had grown harder, longer, throbbing with heat and need. The sound of his moans, raw and desperate, vibrating through his chest against her ass. The smell of him, male and musky and overwhelming. And then the finale, the explosive release that had coated her breasts and stomach with rope after rope of thick, hot cum while Mark watched.

She turned onto her side, her hand sliding unconsciously between her legs, finding herself wet despite her conflicted emotions. She was a married woman. A loyal wife. She had never strayed, never even considered it. Men had lusted after her entire life, her modeling career had ensured a constant barrage of male attention, catcalls, propositions, hungry eyes, but she had always been faithful to Mark. Always.

So why couldn't she stop thinking about Alex's cock? Why did the comparison keep surfacing in her mind, unbidden and treacherous? Bigger than Mark. So much bigger. Thick. Heavy. Perfect.

She finally drifted into a fitful sleep just before dawn, plagued by dreams she couldn't quite remember but that left her flushed and aching.

The morning routine was mechanical. A light breakfast: granola and berries, green tea. She moved through her kitchen on autopilot, her mind elsewhere, replaying the scene by the pool, the way Alex had looked at her, the way she had felt powerful and wanted and dirty all at once.

She drove to the yoga studio on autopilot, the convertible's wind doing nothing to clear her head. The class was a blur. She moved through the poses - downward dog, warrior, child's pose - but her body felt foreign to her, disconnected. When the instructor told them to clear their minds and focus on their breath, Jenna's thoughts immediately drifted to the feeling of Alex's shaft sliding through her spit-slicked fingers.

Pilates was worse. The core exercises, the pelvic tilts, the bridges, every movement seemed to stimulate her in ways that were inappropriate for a public studio. She could feel the ghost of arousal between her legs, a persistent thrum that had started yesterday and refused to dissipate.

By the time she got home, she was restless, agitated, her skin too sensitive, her body humming with an energy she couldn't control.

She stepped into the shower, letting the hot water cascade over her toned body, hoping it would wash away the tension. She soaped her arms, her stomach, her breasts, still slightly tender from yesterday's activities, she realized with a flush. Then she lifted one leg onto the shower bench and brought the detachable showerhead down to rinse her lower body.

The water pulsed against her inner thigh, warm and insistent, and she gasped as she accidentally angled it higher, the spray hitting her pussy directly.

"Oh," she breathed, her hand gripping the shower wall for support.

She realized with a start that she was still aroused. Not just mentally, not just in her conflicted thoughts, but physically. Her pussy lips were swollen, sensitive, engorged with blood. The water felt almost too intense, too stimulating, and she realized she had been in a state of semi-arousal since yesterday afternoon, since the handjob, since Alex's cum had splattered across her skin.

Mark's injury. That was part of it, she rationalized. They had an active sex life, usually several times a week, and the three weeks since his accident had been a forced drought. She was horny, plain and simple. Her body was craving release, craving the sex she wasn't getting. That explained her reaction yesterday, her wetness, her inability to stop thinking about Alex's cock. She was just sexually frustrated. That was all.

Maybe she just needed to get off, like Alex had. Maybe then she could return to normal, could look at him without remembering, could be a faithful wife again instead of this... this creature who couldn't stop obsessing over another man's dick.

She sat down on the shower bench, spreading her legs, and brought the showerhead closer to her pussy. The warm water pulsed against her clit, and she moaned softly, her head falling back against the tile. With her free hand, she gently traced her pussy lips, feeling how plump and wet they were, how ready her body was despite her mind's protests.

She tried to think of Mark. Tried to picture his face, his body, the way he usually touched her. But her mind betrayed her. Instead of Mark's familiar features, she saw Alex: Alex's face flushed with pleasure, Alex's mouth falling open as he moaned her name, Alex's hands gripping her hips as she jerked him off.

"No," she whispered, squeezing her eyes shut. "Think of Mark. Think of your husband."

But the image persisted, grew stronger. She remembered the way Alex's cock had felt in her hand, the silky heat of it, the way it had twitched and pulsed as she stroked. She remembered spitting on it, the obscene wet sound, the way her saliva had mixed with his precum to create the perfect lubrication. She remembered the weight of him, the sheer size that had amazed her, the way her hand couldn't close around his girth.

"Fuck," she moaned, her fingers moving to her clit, rubbing in soft, circular motions.

She increased the tempo, her hips bucking slightly against her hand. The water from the showerhead continued to pulse against her, adding to the stimulation, and she felt her orgasm building, slowly gathering strength.

She tried again to think of Mark, but her treacherous mind supplied other images: Alex's cum shooting into the air, the thick white ropes landing on her breasts, the heat of it, the smell. She remembered how shocked she had been by the volume, how Mark had never cum like that, never covered her like that. She remembered the way Alex had looked at her afterward, grateful and worshipful and still hungry.

"Alex," she whispered, the name escaping her lips before she could stop it. "Oh God, Alex..."

She was close now, her fingers working her clit in rapid circles, her breath coming in short gasps. She threw her head back, her eyes opening, and that's when she saw it.

Her white bikini from yesterday, hanging from the shower knob where she had left it to rinse off.

She could see the stains even from here, the stiff, crusty patches where Alex's cum had dried on the fabric. The bikini top, the triangles that had covered her breasts, now stiff from yesterday's climax.

Something in her snapped. She propped the showerhead against her leg and reached over with her free hand, her fingers trembling, and grabbed the bikini top. It was stiff under her touch, the dried cum creating rough patches on the silky fabric. She brought it to her face, her nose inches from the material, and inhaled deeply.

The smell hit her immediately: musky, masculine, distinctly Alex. It smelled like sex, like lust, like yesterday's transgression. She remembered the warmth of his release, the way it had splattered across her tits, the way it had dripped down her stomach. She remembered the thickness of it, the sheer amount, the way it had just kept coming.

"Oh fuck," she moaned, her fingers working her clit frantically now, her hips bucking wildly. "Oh fuck, oh fuck..."

She buried her face in the bikini top, sniffing deeply, inhaling Alex's dried cum, and that was it. The orgasm crashed over her like a tsunami, violent and overwhelming and weeks overdue. Her body convulsed, her legs shaking uncontrollably, her pussy clenching around nothing as wave after wave of pleasure radiated through her.

"Alex!" she cried out, the name echoing in the tiled shower, her voice breaking. "Oh God, Alex, yes, yes, yes!"

She kept rubbing, kept sniffing, kept riding the wave until it became too much, until her clit was oversensitive and her legs were weak and she was sliding off the bench, down the shower wall, gasping for breath.

In the aftermath, she sat on the shower floor, the water still running over her, the bikini top clutched in one hand, her other hand still between her legs. Her heart was pounding, her skin flushed, her mind suddenly, terribly clear.

She looked at the bikini top in her hand, the stiff fabric, the evidence of what she had just done. She had just masturbated to the smell of another man's cum. She had just screamed Alex's name while she came. She had just used her husband's friend's dried semen as a prop to get herself off.

This was not the action of a faithful wife.

The shame hit her then, cold and heavy, settling in her stomach like a stone. She dropped the bikini top as if it had burned her, watching it fall to the shower floor, the white fabric darkening as the water soaked it again, washing away the evidence of yesterday, washing away her sin.

But she knew, even as she watched the cum dissolve and run down the drain, that she couldn't wash away the memory. Couldn't wash away the feeling of Alex's cock in her hand, the sound of his moans, the smell of his release.

She stood on shaky legs and finished her shower on autopilot, her mind elsewhere, already wondering how she would react to seeing Alex again, already hating herself for wanting to.