Fan service

Fan Service is a term used in anime and manga to refer to scenes or situations that are unnecessary to the storyline. This is mostly common in Filler and is usually often something that may exploit a female character in a sexual manner with stuff such as Panty Shots, Bathing Suits, Bath and Shower Scenes, Unnecessary Nudity, Ect. It is sometimes used with male characters as well such as accidental kissing.