A story about crossing the line with a son who loves his dad

The main character is a single father with a son in high school.
His son Rui loves him very much.

Even though the father knows in his head that this is wrong, he gradually loses control because of his son Rui's overly naughty body...

I think the highlights are the son's erotic body and the father's madness in the last scene.

Includes inc*st, male boobs, big nipples, puffy nipples, breast fiddling, blowjob, urethra insertion, ahegao, anal licking, prostate, X-ray, etc....

Genitals are covered up with censor bars. The main part is 36 pages.