Not in full on manga but crossing the latest sections of less tame sites, Putting penis in holes/places that are physically not possible and could not possibly feel good such as and hopefully limited to
Nose, ear, eye, navel, and open wounds
Like I know some of the really F'd up kinks can result from watching certain cartoons/shows at the wrong tim...... reply
Hmm, judging from some of the other answers, mine isn’t too crazy, but here goes:
Shoving a banana up their ass.
Oh and a lollipop, how can I forget the lollipop?! reply