You've just found out that your stepmother taught you how to masturbate, did she or didn't she? If you are stepmother it might be a good idea for you to think about this before your friends find out about it. We're assuming she did, because if she didn't than there's a pretty good chance that she's not going to share with you the secrets of her best secret girlfriend that she's keeping from you. If you were taught by your mother how to masturbate than I don't think that you're doing it wrong but you have other girls learning the techniques and it is something that you will want to keep to yourself. When your stepmom teaches you how to masturbate talk to her about toys that will stimulate your little girls clitoris..