https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_546305

[Synopsis]

Autumn - When preparations for the school festival began.
I was a little nervous.
Because the school festival was to be held in pairs of boys and girls.
My partner was Yamada-san.
My faint hope that I might be able to become friends with a cute girl vanished as the school festival ended with polite language until the very end...
One night, I was on the phone with Yamada-san.
After finishing my last errand, I thought my relationship with Yamada-san was over... but from the other end of the phone, which I thought I had hung up, I heard a girl's moaning! ?
It seems that Yamada-san had forgotten to hang up and was masturbating.
I was found out to be eavesdropping but after a desperate excuse, we ended up masturbating together...! ?
Since then, Yamada-san came to my room and started masturbating.
We became close through the only hobby we shared, masturbation.
I spent my days using Yamada-san's whole body to live a fulfilling masturbation life.
However, a certain incident triggered a change in our relationship...! ?
Furthermore, a popular girl in class found out about our relationship...! ?
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Masturbation for the win lol

Base +25, Fofotron +25, nuts987 +13