I can't get enough of this mom's ass in tight pants.

"Ugh, it hurts, it hurts..."

Kei-san finally gave up, and as expected, I started to feel sorry for him.

"Alright then. Let's straighten up a bit."

I told Kei to lie face down.

"I'm holding your ankles, so please try to stretch against them," I instructed.

Kei-san tried his best to raise his head and lean back, but he couldn't do it at all. Waka-chan, who was standing nearby, watched with an astonished look on her face.

"Kei-chan, you're not good at all. Wasn't your body more flexible before? This is due to lack of exercise. Ayaka-senpai, don't go easy on him!"

Encouraged by Waka-chan's words, I straddled Kei-san's waist. Gently but firmly, I placed my hands under his chin and pulled his upper body backward.

"Ouch... my spine feels like it's going to break..."

He protested, but I knew I wasn't applying too much pressure. I pressed my butt against Kei-san's back.

Hehe... What do you think? My butt? This is your favorite butt, right? It feels good to be pressed against it like that, doesn't it? I chuckled inwardly.

"Let's try a little harder," I said with a smile.

As I said this, I took one hand away and rubbed Kei's waist and stomach. Suddenly, my fingertips brushed against something just below his navel.

...!

I knew immediately what it was. ...It was his cock! And it was really big! Kei's erection pressed against my stomach...

A flashback came to mind... Natsuki's huge cock on my first day as a prostitute... So big that it seemed we were almost equals... The woman inside me couldn't help but react.

There's a big cock just a few centimeters below my vagina... I want to welcome it now if I can... And deep inside, I want you to let go...

The feeling when Natsuki penetrated me... The sensation when he forced my thin vagina open so wide that it made a wet, squeezing sound... The incredible pleasure of his thrusts that hit the top of my head... And then the powerful ejaculation that filled my uterus...

Of course I started to get wet.

But I didn't let my feelings show. Smiling, I moved on to the next exercise.

"Okay, now let's try a slightly different type of forward bend. I'll demonstrate," I said.

Standing with my feet shoulder-width apart, I bent forward while keeping my legs straight. From Kei's perspective, my bottom and crotch were only 10 centimeters in front of him. In this position, I put my hands behind my thighs.

"Please pull my hands," I instructed.

As Kei pulled my hands, my upper body bent further, almost touching my knees.

"The goal is to bend this far. Got it?"

Holding this position, I slowly moved closer to Kei-san. Sitting cross-legged, he found my crotch just a few centimeters away from his face.

The distance was tiny... I could hear Kei breathing deeply near my crotch.

Smell my scent as much as you want... Let it excite you even more...

When I thought he had had enough, I stood upright, turned around and said with a mischievous smile:

"Do you understand?"

I made sure to show my butt in my tight yoga spats.

Kei-san looked dazed, his face flushed.

It's working. It's definitely working. Just one more push.