Description: Jokes on naked bum are not funny, except if it is both ways. Meaning jokes on naked ass of a sexy escorts is funny for everyone.
Sexual fetishism is the use of some inanimate object ( fetish ) for sexual arousal. In everyday life, this is called love for certain sexual practices, role-playing games, passion for some parts of the body, except for the genitals.
Common fetishes:
It is impossible to list everything, because the list is endless. Fetishes are teddy bears and even trains.