https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_651013/

[Synopsis]

Hinata Fujiura, the student council president at her school, is a high school girl who hates anything naughty.
One night during the school trip, she is found by a teacher on patrol playing with a large number of toys brought by her classmates, who have too much sexual desire.
For some reason, Hinata is called in alone for a lecture and is then restrained and forced to actually use each of the toys described.
She continues to orgasm on her nipples and ass and finally, when she can no longer control her pleasure, he penetrates her.
"I don't want to admit it, but... I...! I've been wanting this...!"
Hinata is too sensitive to pleasure and even though she knows it's wrong, she can't stop cumming...!
Then, the other teachers who got involved join in and the night of the school trip continues...

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