“No… I can’t… Uh… My body belongs to my husband…”

At the gym, I hired a personal trainer to work on my glutes.

To make sure I was training my hips right, I wore a pink mini skirt with a hint of my plain white underwear peeking out from underneath.

As if I wasn’t sensitive enough, the personal trainer lifted my skirt and pressed against my thighs.

I felt a tingling sensation coursing through my body.

The personal trainer tugged down my damp underwear.

“Are you getting an itch you can’t scratch? Let me help you there.”

I, Kathleen Green, was an attractive housewife.

In the three years of marriage with my husband, we had tried every position imaginable in our 1,000 sessions.

One day, I was on all fours, my hips arched high to meet Kent Green’s intense thrusting.

He pounded hard against my rear.

It didn’t take long before he let out a sigh of resignation.

“Jeez. You can use a perkier bottom. It just doesn’t hit right.

“I love a nice bounce to it.”

To spice things up in the bedroom, I sought out a personal trainer to target my glutes.

My trainer was a total buffed hunk named Harry Mason.

His skintight gym wear did little to cover up his bulge.

Addressing my pleas, Harry set up a nighttime training schedule for me.

For better observation of my progress, Harry told me to drop the safety shorts under the skirt.

My cheeks burned with shame at the thought of how little modesty I would present myself in front of a stranger.

However, I convinced myself to go along with it to keep Kent happy.

Stepping out of the house in a mini skirt, I could feel the breeze between my legs.

I was careful not to bend over while out and about, or I’d be completely exposed to the world.

Every man I passed had their eyes glued to my hemline. It was the most embarrassing thing ever.

As a woman with a high libido, I practically had to hold myself back from screaming under the burning stares of these men.

Once at the gym, I couldn’t take my eyes off the sheer bulk of my personal trainer.

The little fabric was struggling to provide cover for his size.

Harry beckoned me over.

“Kathleen, come here. I’ve got your workout all planned out.”

I was on cloud nine with the room full of attractive men and women.

Overcome with nerves and anticipation, I approached Harry.

“Squats are key to getting a lifted, firm butt. Grip the barbell with both hands and squat down. Make sure you feel the pull along your spine.

“Push your hips back as far as possible to hit your glutes.”

Standing behind me, Harry guided me through every step.

His package was right there, brushing against my backside at close distance.

With each grazing contact, I felt a jolt run up from my tailbone, making me shiver all over.

“Alright. Try a squat now.”

I wasn’t one to hit the gym, so strength wasn’t my forte. As soon as I dipped into a squat, my center of gravity shifted.

Losing my footing, I fell back onto Harry.

Right on target, I landed squarely on that throbbing mass of his.

It was bad enough that I wore a skirt with little to no coverage, but my panties were practically nonexistent as it felt like he was positioned right against my skin.

Feeling a rush to my loins, I was utterly embarrassed.

The sheer scale of him felt so much better than Kent’s.

Harry held me under my arms and helped me back to my feet.

I said blushingly, “I didn’t mean to… I lost my balance. I’m so sorry.”

“It’s okay. You’re new. You’ll get the hang of the training soon.”

The way Harry looked at me was smoldering, like he wanted to devour me alive.

It struck me that, given our height difference, I couldn’t possibly bump my hips onto his swelling.

Unless Harry put himself there on purpose at the right place and time.

Oh, my! This was straight out of a tabloid headline, and it was happening to me in real time.

Yet, I wasn’t the least bit upset. In fact, excitement stirred within me.

To be honest, the rush was nothing less than thrilling.

With my thoughts wandering toward trouble, I quickly grounded myself.

I couldn’t possibly cross the line, as my body was reserved for my husband.

Soon enough, I reset my position, feet hip-width apart. I was determined not to fall this time.

Raising the barbell with all my might, I braced myself for another squat when Harry clamped down over my wrists.

“Here, let me give you a little extra support.”

His firm grip from behind made me feel almost bound, and my shame only deepened.

Surely, I wouldn’t drop out of my stance with Harry’s help.

Steeling myself, I tensed my muscles and sank back into a squat.

“Yes, that’s it. Take your time. Feel the stretch around your glutes as you pull your hips back. Keep your pace and don’t forget to breathe.”

Harry gave me pointers from behind.

Holding my wrists, he shadowed my slow descent.

I must admit that Harry knew his stuff, as my footing was solid when I pushed my hips all the way down.

Out of nowhere, a solid mass wedged itself between my glutes.

As my skirt flared out during the squat, Harry pushed right against my barest essentials.

If the first time was an accident, this was blatant harassment.

Harry sure was bold.

Despite the packed gym, Harry committed the act so openly.

Nevertheless, I lost myself in the sensation.

Kent was always finished in minutes whenever we got down and dirty. My needs were never met.

Harry’s impressive size hit me right, making my knees go weak.

“Go deeper and squeeze your glutes,” Harry instructed.

“Drive through your feet and tuck your tailbone. Careful to keep your back straight when you get back up.”

I didn’t pack enough muscle in my legs to sustain the lift.

To my surprise, Harry hoisted me up, his package hard against my hip crease.

It was amazing how he lifted me off my feet.

With our bodies locked, my cheeks squeezed his size.

Oh, no. His rock-hard presence left me hollow inside.

A rush of electricity shot through me, my body numbing with sensation.

I tensed my body, trying to fight off the ticklish thrill.

However, the hinge of my hips only trapped his core deeper into my flesh.

“You’ve got the form down, so we can move on to sculpting those glutes.”

Harry released his grip on my hands and cupped my rear.

His hands on my hips made me quiver.

I was startled as this was no workout.

“H-Harry, isn’t this a bit much?”

“Don’t take this the wrong way. I’m giving you a boost. It’s part of the training. Trust the process.”

Feeling assured, I followed Harry’s lead in the workout.

Harry grabbed my tush, his bulge pinned firmly against me.

“Now, I want you to engage your hips until you’re shaking.”

I jerked my glutes frantically, my plain panties barely hiding under my fluttering mini skirt.

With each shake, I could feel the size between my hip crease expanding significantly.

I couldn’t believe that I was a sleeve to Harry.

“Am I getting the pace right, Harry?”

I put everything into tightening my hips while Harry pressed hard against me. It felt like tiny sparks crawling through my bones.

My nerves were on fire.

I was getting wet.

Suddenly, Harry dug his hands into my hips and slammed back against my body.

My glutes were squished against his solid frame.

“At this rate, you’re nowhere near getting the round shape you’re after. Hold on tight.”

Harry started pumping his hips.

Each thrust smashed into my backside, jiggling my cheeks like jelly.

“Ohhh…. Stop, Harry. I can’t take it anymore.”

The sheer intensity of the bulldoze made me melt.

Judging by our posture, it was clear that we were doing it.

If he kept rubbing against me, my underwear wouldn’t stand a chance.

“Keep up with the clenching. My help can only take you so far. You need to put in the work, too.”

For some reason, my body started pulsing with a mine of its own.

Syncing to Harry’s beat, I mirrored his thrusts.

My eyes rolled back in pure ecstasy.

Every cell in my body screamed with pleasure as I caught myself in a sensory overload.

Kent could never come close to this. Harry looked like he could go on forever.

“Engage! Hold it!” Harry commanded.

My knees were failing me as my body wept with sweat.

“Uh… Ahhh…. Yes…” Breathless moans escaped my lips.

Harry unzipped his fly and pulled out his thing.

A burning prickle clung to my skin, and my body went numb.

We were at the gym, not some private club. The nerve of Harry!

“No, we can’t. I have a man. We can’t, Harry.”

I was on the verge of tears.

Without warning, Harry yanked my panties down.

“Do you have any idea how soaked you are?”

Shame crept onto my cheeks.

Before I knew, Harry spread my cheeks and ploughed into me.