weeeellllllllllllllllllllllllllll, if she ever does confront you and asks if u were smoking, you can either tell her the truth or tell her u were jackin it, up to you, if she thinks u were jackin it she will never ask you anything about it, though depending on how old you are you may expect a word from your dad

then again you could always make something up that doesnt involve jacking it, but good luck thinking of something like that, that will lead to her dropping the subject and leaving u alone