There is no definitive answer to this question since opinions will vary from person to person. Some people may feel perfectly comfortable with a masseuse touching their butt during a massage, while others may not be as comfortable with it. Ultimately, it is up to the individual to decide what they are comfortable with and what they are not comfortable with. If you are unsure about whether or not you would like a masseuse to touch your butt during a massage, it is best to communicate this with the masseuse beforehand so that they can respect your wishes.