The Glove of Size Control!

Character(s) come across a glove that can manipulate anyone's size when touched. The wearer can manipulate anything on a person's body when they touch them, overall size, specific body parts, orgasm fatigue, hair color, eye color, etc. This idea is broad enough that anybody could be the dominant one in control or the tiny one who is at the whims of another. Depending on who has the glove.