Kazusa's heat control, day 4

Today you knew were to find Kazusa, so you went directly to the gym.

When you arrived you saw her doing some stretching.
For you was impossilble not notice her muscle mass growth is increasing every day,  she definitely grew more than the previews day. And at the same time you can see she looks less flustered from her heat situation, so there must be some connection, as proof that cure is somehow working.


"Ah, Sensei, good afternoon. Are you already here? I was starting my training... do you mind if I complete it before going?"

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| Ok, no problem. Than I can come back later.   |
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"Ah! No! Well... I don't mind if you stay and watch..."

Seemed almost like she wanted you to watch her.
Than you agreed and sit while she start to workout.

You notived that during today's training she was using weights bigger than the ones you saw yesterday. And while was lifting them with more intensity, you could see her searching for you with her eyes, almost like she wanted to catch you attention.


After around one hour she ended her training.
Just one hour and a workout session passed, but you could see a huge difference in her muscles. Not much in size, but now every single muscle had an incredible definition.

Kazusa noticed your attention and mumbled a bit by herself.
"So... he really like it..."

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| You said something? |
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"Ah! It's nothing!
T-Than, I'll go to take a shower and than we can go!"


But, instinctively, you stopped her... You wanted to go back and watch her nude body as soon as possible before her muscles started to relax.

"Oh... you are such in a hurry, Sensei~?"


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| No... It's that I don't want you to get home too late |
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As teacher, you didn't wanted to admit you wanted to watch one of your's students nude body.

So you went back home and, as usual, Kazusa didn't took long before taking off her clothes.

This time, for some reason, she changed her usual position, showing you her back while letting you in her body.

Differently from the previous times you could notice she was starting to take a bit of the initiative and was starting to move her body, waiting you to do your part too.

But, watching her back muscles for the first time made you totally absent-minded, they were really impressive and pretty.

After a bit, seemed that Kazusa lost the patience from your inactivity and turned her body, now facing you. From a great view to another.

"Sensei... are you going easy on my today? Jeez, seems like I've to help you than..."

And so, she started to move her body up and down increasing the movement speed.

You joined her in the sexual act and continued until you booth came.

With every passing day she was lasting more and more before coming and for the first time she didn't before you. And with the change in her behaviour, you could say the cure was really working. The heat was slowly becoming just and healthy young woman sexual deside.

You could feel, probably thanks to she moving her body today, how much heavier her body became since the first time, sign of her impressive muscle mass growth.

There were still 3 days before the end of the cure circle, you were starting to wonder how much and if she will continue to grow.