Kyouhaku Ryoujoku Futanari Mesu Dorei! ~Osananajimi ga Hentai Chinpo Musume Da to Shirazu ni Kataomoi Shiteita Boku no Bousou~

* STORY
What if the girl you liked was hiding the ultimate secret...?
How would you deal with that knowledge?
In this "what if" XXX ADV there's only one course of action!!

*-The girl he liked was masturbating in the classroom... but there's something strange about it...*
Takusu Nakano has a crush. It's his childhood friend Tamaki Kamiya.
One day he came back to school to pick up something he forgot, and heard it.
Timidly he peeked into the room and saw her touch herself!
He was embarrassed and aroused at the same time.
But as he peered, he realized she was jacking off a penis. Her own penis.

*He threatens her to make her a slave-on-command.*
The girl Takusu liked was a futanari... All this time he was into a hermaphrodite...
Even though he'd believed her to be a girl, the truth made him tremble.
His distorted emotions led him to blackmail her.
She must do what he says, or he'll tell everyone her secret.
Tamaki wanted to protest, but to spare herself the exposure, she agreed.

The class, the park and the roof, it's a nonstop sadist party!
Takusu forces ever-filthier acts on Tamaki as she succumbs to pleasure!
When all is done, what's waiting for these two!?

[From DLSite English]