It hurt but felt refreshing, and yet tickled at the same time. I even had the absurd thought that I wished the instructor’s hands would keep touching my body just like this.

“We’ll do the final stretching on the floor. Lower your body slowly and come down. If you stand up suddenly, it’ll strain your back.”

I slowly slid my body down until my feet touched the floor, then straightened my upper body to stand. I found myself making direct eye contact with the instructor. 

Once again, I stared at his face in a daze. His bangs, parted in the middle and curving to both sides, were so pretty. The instructor, who’d been quietly meeting my gaze, gestured toward the floor with his eyes.

Ah. Stretching.

“All fours, cat pose. Breathe in enough to open the spaces between your ribs, and curve your back. Exhale through your mouth and extend one arm, then the other forward until your armpits touch the floor.”

It was a position with only my b*tt sticking up high.

“Imagine opening up your perineum. Lower your chest to the floor.”

He placed his palm under me and pushed up. My b*tt rose even higher.

“Don’t let your b*tt drop. If you engage your lower abs, you’ll feel it open up a bit.”

I’d heard this instruction countless times even when working out with female instructors. But I don’t know why it kept sounding mischievous. I tried to engage my lower abs while imagining my lower area spreading wide open.

“…!!”

The instructor suddenly grabbed both my b*ttocks.

“Outward, like this.”

“Hng!”

His forceful hands spread my b*tt apart. I couldn’t tell if this was also part of the stretching, but the instructor didn’t let go and only spread them wider. Until the b*ttocks caught between the man’s widely spread fingers tingled.

If my underwear got wet, would it show through the leggings? 

I didn’t really care either way. 

Feeling his grip strength, I felt the impulse to act a bit bolder. So I deliberately didn’t hide the moans that kept trying to escape.

“Haah…”

He squeezed my b*tt firmly, then released it.

“Stay like that and lie prone. Arms by your pelvis.”

As soon as I lay prone on the mat, he sat on my thighs. No, a bit higher up.

He grabbed my limp hands and pulled them back. With that force, my upper body lifted and my back arched. Something heavy pressed between my b*ttocks.

“This position is good for your back muscles. One, two…”

His weight pressed down firmly below my b*tt. He seemed to move slightly too.

“Lie on your back now. Extend your arms toward me, and spread your legs as wide as possible.”

He placed the soles of his feet against mine. The non-slip parts of the toe socks rubbed stiffly together. As the instructor gradually closed the distance, my legs spread wider to the sides. 

When my hamstrings stretched taut, he stopped, pulled my hands, and bent at the waist.

His head ended up right at my crotch. It was an embarrassing position, but somehow the area he must be looking at seemed to heat up.

“Ah! Ngh.”

Was this always such a lewd exercise? Or had I been starved for too long? After a few seconds of silence, he straightened his body, then leaned back again while pulling my hands.

“Lower your upper body as far as you can.”

He pushed my calves further with his toes. The muscles stretched more, but it was less stimulating than the space between the man’s legs right before my eyes. Forgetting even to breathe, I stared at the bulge visible above his leggings.

I wondered if that was his usual size, or if it had swollen a bit.

“Slowly straighten your upper body. Shall we try kneeling?”

I rubbed my stretched thighs vigorously, then knelt on the mat. He pressed close to my knees and took the same position. The distance was so close my face flushed hot. 

The man’s body scent wafting over made me feel slightly dizzy. We clasped each other’s elbows and pressed our front thighs together. Something hard poked repeatedly near my navel.

“Slowly tilt your head back. Keep your center of gravity on the arms you’re pulling and lean back without straining your lower back.”

As we leaned our heads and shoulders back while relying on each other, the force concentrated on our pressed-together thighs, bringing us even closer. Our bodies rubbed slightly, and what touched near my navel became more clearly imprinted.

“Good work.”

But seemingly heated on its own, the instructor simply finished the movement and wrapped everything up with breathing exercises.

Breathing alone couldn’t calm my heightened excitement, leaving me feeling dazed. When I stumbled out and stood before the changing room mirror, my face was bright red. I felt reluctant that the workout time had ended. Even if there was more, it’s not like I could do anything…

The class I’d chosen was the last slot before lunch, so the Pilates center was already completely empty. It was natural, since I was the only student in that last time slot. 

Still flushed with heat, I fumbled into my long coat over my workout clothes and headed out. The instructor sat at the desk by the entrance.

Seeing me, he stood briefly and offered a greeting, saying I’d worked hard. I bowed my head and was taking out my sneakers when he stopped me.

“Just a moment, client.”

“Ah…”

He came around the desk, pulled out the long hair that had gotten tucked inside my coat, and tugged at the carelessly tied hair tie.

“It’s really tangled. Today must have been too hard for you.”

His touch was quite gentle. He combed through my hair with his fingers like stroking it, gathered it all at my crown, then skillfully wrapped the hair tie around a couple times to secure it firmly before sweeping upward from my nape toward my scalp.

“Ahng!”

I froze. Unlike my body that had frozen solid, my heart boiled like a blazing furnace.

“It was sloppy, so a lot of flyaways came out.”

“Th-thank you.”

I turned my head to look up at the instructor. He met my gaze intently, then pressed the door’s open button for me. I rushed out like escaping and arrived home at high speed. While showering, I eventually reached down below. I couldn’t help it—even just the stream from the showerhead made me too sensitive.

* * *

Two days later, I had to endure upper body exercises at high intensity like some athlete in training, just as he’d predicted. Until my body and mind were completely worn out.

Today the positions were so difficult that even when he supported me under my chest to lift me up, I only felt dizzy.

“We’ll move to the yoga room for the finish.”

Perhaps planning to do lengthy stretching, we moved to the adjacent room, laid out mats, and faced each other. Following his movements, I lengthened my spine, opened my body wide, and loosened the knotted muscles throughout.

“Maintain a straight line from fingertips to toes. Extend the arm supporting the floor more so your lower shoulder doesn’t rise.”

Supporting myself with only one arm and one leg made my whole body tremble. He wrapped around my side from behind and pulled upward toward the ceiling.

“Don’t let your waist drop.”

While saying this, he pushed my b*tt forward with his bulging pubic area.

“You keep falling back. Maam, squeeze your b*tt more.”

Though it was a correcting position, my attention focused entirely on the man’s arm crossing my lower abdomen, caught in the delusion that he was embracing me. He then pressed firmly on the leggings below my navel.

“Ngh…”

“Make it hollow. Exhale completely, good.”

His pressing fingertips touched my pubic bone. Expelling every last breath from my lungs, I squeezed my eyes shut.

“Lie down now.”

As soon as I lay down, he slid a small massage ball under my shoulder.

“Ack!”

It was a moan from actual pain, not from arousal.

“It hurts just having it under there, right?”

“So much.”

“Close your eyes comfortably and relax your body. I’ll work on your feet a bit.”

He immediately removed the toe socks from my feet. I flinched in surprise, but he patted my calf lightly, so I tried to close my eyes again and release the tension from my body.

A cool scent like peppermint spread, then the arch of my foot was pressed firmly. Even though my foot fluttered in a reflexive response, he pressed various spots on my feet with his oil-covered hands.

“Hah!”

He pulled each toe individually and circled around my ankles. Far from relaxing, tension built firmly in my lower abdomen.

“Haahngh…”

When his fingers entered between each toe like interlocking fingers, I let out a moan without realizing it. He squeezed out more oil once more and began touching the opposite foot. 

Red and yellow colors burst and spread above my closed eyelids. The more he touched, the more heat rose.

“Turn over on your stomach.”

I loved his touch so much I quickly flipped over. Tumble tumble. While I reached out to grab the rolling massage ball, he began pushing my calf with a wooden stick.

“Kyaah!!”

“This muscle is particularly short, so it’ll hurt a bit.”