Masashi, 19 Years Old, Class 1-B

Masashi's dick twitches when he discovers that the men's toilets near the medical bay have been marked as Out of Order.

First checking that nobody is around, he fishes out his key. With a twist of the lock, he's in. Slipping inside, he closes the door behind him, making extra sure that he's locked it tight.

The erotic Meat Toilet in front of him is a feast for the eyes. The butt is actually stuck in the ground, this time, with wrists trapped in the ground as well, just in front. It gives off the impression that the owner of the butt is being held in a sort-of piledriver position under the ground itself.

Cum spurts violently out of the Meat Toilet's already well-used pussy - a sign that the last person to use it likely only left a few minutes ago at most. Cum covers its pussy, hands, and glasses, set neatly on the ground in front of its snatch. This Meat Toilet has only been here, what, half a day at most? And already this pussy has probably been fucked like, at least 20 times, if not 30 or more.

The instructions on the sign read as follows:

"Unprotected sex only, as a punishment for being impolite to a student upon entering the academy.

"Vaginal sex only, as a reward for rushing across town so quickly.

"EXCEPTION: Anal sex only for blood relatives, to avoid risk of incestuous pregnancy.

"HEAVEN OR HELL: On any day that the Meat Toilet has received no anal sex, its evening cleaning enema will include 1 diced chilli pepper.

"EYE CONTACT ENFORCEMENT: Meat Toilet users must stare at the photo at all times. Eye motion trackers and retina scanners installed behind the photo's eyes will confirm rules obedience and log whether incestuous sodomy occurred each day."

It's only after reading this final line that Masashi for the first time looks at the photo of the girl that this Meat Toilet used to be.

And then he immediately turns white.

The girl in the photo, Suki, is his sister.

This is his punishment.