Kazusa's heat control, day 7 (Patreon)

Today was finally the last day of Kazusa's cure circle.
After the recent stop on her heat instict and the slowing down growth of her muscles, you were quite sure it was a success (a bit unexpected in the growth side) and the effect was almost if not totally gone.
Before going to Kazusa, you went to Saya to report the effect of the cure.
She was quite excited by the report, so much that she gave you another bottle, telling you she improved it, making it effective even without any heat situation and that was worth testing further.
You took it, but decided to not give it to Kazusa. You were intentioned to end it here today before the situation could go out of control and this "intimate" situation with her could come out.

After a bit you arrived to the gym, expecting to not find any difference from the previous day, but you soon proved wrong.
Didn't took you long to find Kazusa inside, definitely wasn't a figure to go unnoticed, still a bit far way from you her figure looked different from yesterday, like widere, but you tought was just your impression. But, the closed you went to her, the more evident was that she wasn't indeed the same as yesterday.
Her muscles grew again, and this time more than before, mostly her arms, shouders and back which became even larger than before.

Shocked you started to think what could have bring this re-activation of the effect. Maybe her unsual and intense sexual arousal she showed yesterday and the multiple times she made you cum inside her?

But you didn't had much time to think that she noticed you and came toward you.

"Sensei! Look! They grew more today! Maybe I just didn't trained enough last time, so today I came here this even morning before the class started."

_______________________________________________
| It's really impressive, but... What happed to your clothes?  |
|______________________________________________|

You pointed at her topless upper body.

"Ah... Well, at a certain point my tank top started to feel tighter and tighter until... well, It didn't resisted." She pointed at a tattered piece of clothes on the floor.

"Well, you are a bit late today, I've already finish today, so... time to go, right?
Today let's change a bit and go to my place!"

______
| Wai... |
|_____|

She didn't gave you the time to stop her that she dragged you around like a small child until you arrived.

Once arrived you didn't even had the time to look around that she was already without any clothes.
"What do you think, Sensei... isn't exciting to be in the room of a young, cute and defenceless girl?" (you hade many doubts about the last part)
"Come on, don't be shy. I'll help you!"

In a moment she stripped you naked and in a moment she was already on top of you.
Same as yesterday, she didn't seemed satisfied with just having sex one time and continued until she was fully satisfied.

After you regained enough energy to stand up (took you quite some time), you were ready to leave when...

"Then, Sensei, tomorrow..."

This time you stopped her.

____________
| Wait, Kazusa. |
|____________
________________________________________
|From tomorrow there will no be any more of this.  |
|_______________________________________|
______________________________
|Did you forgot? This was for a week.  |
|_____________________________|
__________________________________________
| The cure worked and there is no reason to continue. |
|_________________________________________ |

"But..."

________
|No buts. |
|_______|
_____________________________________________________________
| I'm still a teacher and can't continue to do something like this with a student |
|_____________________________________________________________|
_________
| Before...  |
|________|
______________________
| Will be too hard to resist.  |
|_____________________|

And so you left.

"To hard to resist... So... wasn't still enough..." She mumbled to herself

"???" She noticed something on the floor

"Sensei forgot this?

Looks almost like... the same bottle of the cure Sensei gave me that time..."