Thanks for your question.  Masturbation, or rubbing your genitals, can be a totally normal part of puberty and life.  That said, some people masturbate, and some people don’t.  The decision to masturbate (or not) is a personal decision and can depend on lots of different things, including cultural or religious beliefs.  Whatever someone decides, it does not mean anything about their sexual orientation (i.e. who someone is attracted to).