uh so help?

say...if you wanted your sister to help you wax your legs (assuming you are THAT close with your sister) but you had some scars on your legs, would you still ask your sister to wax it? do you think she would judge you for it even if she knows you did it before? do you think she would assume that you are still doing that thing? should i just go for it and not care whether she tells my parents about the scars or judges it a bit?