"I'm... I'm having sex in the pee hole??"
Yuuri is a high school cuntboy. One day, He encountered a "Tiny man".
Yuuri became friends with the Tiny man, but the Tiny man was an extremely kinky cuntlover...

The Tiny man fills his little mouth with Yuuri's clitoris and gives him a thick cunnilingus....
Yuuri experiences his first urethra sex with the Tiny man's little cock.
It was so so much pleasure that he becomes enthralled by the Tiny man....

Yuuri can't stop deviant play with the Tiny man in class, in the school restroom, or anywhere else....
At last, they secretly have mating sex at Yuuri's house, right next to Yuuri's mom and dad...!?

Official Translations:
English (DLsite, BOOTH), S.Chinese, T.Chinese, Korean