Ava stood in front of her bedroom mirror the next morning, heart pounding like a drum. Ryan had already left for work with a quick kiss and a promise to be home by seven. She'd told him she was excited for her second gym day — "burning calories for us, baby" — and he'd smiled that sweet, trusting smile that made her guilt twist like a knife in her gut.
But her body was screaming. The dildo last night had left her sore and still empty. The toy couldn't give her the heat, the weight, the raw realness she needed. She stared at her reflection, cheeks already flushed.
Just the gym, she told herself. Sweat it out. Be good.
She reached for her usual black sports bra and leggings… then stopped. Her hand hovered over the drawer. The old Ava whispered in her ear: Why hide? You're already wet just thinking about it.
Before she could stop herself, she pulled out the tiniest sports bra she owned — white, low-cut, the kind that barely contained her heavy breasts and left a generous slice of underboob exposed. She paired it with the shortest pair of black workout shorts she had, the ones that rode up her ass and hugged her pussy like a second skin. No tank top. No cover-up. Just exposed skin, smooth stomach, and the soft curve of her hips. Her long black hair went into a high ponytail that swayed with every move.
She looked like a slut. She felt like a slut. And the worst part? It made her clit throb.
"I love Ryan," she whispered to the mirror, voice shaky. "This is just… exercise."
She grabbed her gym bag and left before she could change her mind.
FitZone was packed at 10 a.m. The moment Ava stepped through the doors, heads turned. A few guys on the free weights paused mid-rep. She felt their eyes on her tits, on the way her shorts clung to her ass. Her nipples tightened instantly against the thin fabric.
Vicky spotted her from across the floor like a shark smelling blood. He was in the same tight black tank and shorts as yesterday, muscles gleaming under the lights. The thick bulge between his legs was impossible to ignore. He grinned that cocky, knowing grin and jogged straight over.
"Ava! Right on time." His eyes raked over her body shamelessly — lingering on the deep valley of cleavage, the bare strip of skin above her shorts, the way her breasts jiggled with each breath. "Damn. You're really going all in today. Looking… focused."
She forced a smile, cheeks burning. "Yeah. Need to burn some energy. Badly."
"Perfect timing. I was about to start my own warm-up. Come on — I'll spot you on stretches. Free session, remember?" He didn't wait for an answer. His hand landed lightly on her lower back, guiding her toward the stretching mats in the corner. The touch sent sparks straight to her core.
They started simple. Vicky had her do arm circles, then shoulder rolls. But he moved in close — too close. His chest brushed her back as he "corrected" her posture. His fingers traced her arms, warm and firm.
"Relax into it," he murmured, breath hot against her ear. "Let me help you open up."
Next came hamstring stretches. He had her sit on the mat, legs spread wide. Vicky knelt in front of her, hands on her inner thighs, pressing them further apart. His thumbs stroked slow circles on the sensitive skin just below her shorts. Ava's breath hitched. She could feel herself getting wetter, the thin fabric of her shorts starting to stick.
"Good girl," he said low, eyes locked on hers. "Feel that stretch?"
She nodded, biting her lip. Her pussy ached. Every press of his hands made her hips want to roll forward.
Then he moved behind her for the butterfly stretch. He sat close, knees on either side of her hips, pulling her back against his chest. His crotch pressed right against her ass — that thick, heavy bulge grinding subtly as he leaned her forward. Ava gasped softly. She could feel the heat of him through the fabric.
"Deeper," he whispered, one hand sliding up her side, "just like that."
His fingers brushed the underside of her breast "accidentally" while adjusting her posture. Once. Twice. Then he cupped her fully for a second — pretending to stabilize her — thumb grazing her hard nipple through the thin bra.
Ava's head fell back against his shoulder. She didn't pull away. She was in heat — pussy dripping, thighs trembling, the old nympho inside her roaring to life. Guilt screamed in her mind (Ryan… Ryan…), but her body didn't care.
Vicky noticed. His breathing got heavier.
Now the quad stretch. He had her stand, one leg bent back, foot in his hand. He pulled gently, opening her hip. But he stepped in close again, his hard cock pressing against her thigh through his shorts. The stretch made her chest thrust out. Her breasts bounced with every breath.
Then it happened.
As he pulled her leg higher, her right breast slipped free from the tiny sports bra. The white fabric slid down, exposing the full, heavy globe — pale skin, dark pink nipple hard and aching in the cool gym air. It jiggled once, right in front of his face.
Ava froze for half a second. She knew she should yank it back up. Cover herself. Act embarrassed.
But she didn't.
She was too far gone. Her pussy clenched hard at the exposure, at the way Vicky's eyes widened and darkened with raw hunger. She just looked at him, lips parted, breathing fast, letting the boob stay out like it was the most natural thing in the world. A thin sheen of sweat made it glisten.
Vicky's grip on her leg tightened. His cock twitched hard against her thigh.
Fuck, he thought, staring at that perfect tit. If we were alone right now… I'd bend her over this mat, rip those shorts down, and fuck her raw. Pound that married pussy until she's screaming my name and creaming all over my cock. She wants it. Look at her — not even hiding it.
But the gym was full. People were everywhere. He forced himself to stay professional on the outside.
"Oops," he said with a low chuckle, voice thick. "Wardrobe malfunction."
He reached up slowly and helped tuck her breast back into the bra — but not before his palm brushed the nipple, rolling it once between his fingers. Ava let out a tiny, needy whimper she couldn't hide.
Vicky's eyes met hers. "You're burning hot today, Ava. Real hot." His hand lingered on her side. "We should do more private sessions. After hours. I can really… stretch you properly."
She swallowed, heart hammering. The boob slip, his touch, his words — everything made her throb. She wanted to say yes. She wanted him to drag her to the locker room and destroy her right now.
But Ryan's face flashed in her mind. His loving smile. The way he held her last night.
"I… I think that's enough stretching for today," she whispered, voice hoarse. She stepped back on shaky legs, fixing her bra properly this time.
Vicky smirked, adjusting the obvious tent in his shorts without shame. "Whatever you say. But tomorrow… same time. I'll have a much better routine ready."
Ava fled to the women's locker room, locked herself in a stall, and shoved two fingers inside her soaked pussy. She came in under a minute, biting her arm, imagining Vicky's thick cock instead of her fingers.
When she finally stepped out, sweat still dripping, she stared at her reflection.
One more day, she told herself. I can control this.
But deep down she knew the leash was slipping faster than ever.
And Vicky had just yanked it hard.
To be continued…
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