Listen, pal, your mom has already seen you naked hundreds of times, including when she gave birth to you. You just don't remember them, that's all. It happens, and it's nothing to get alarmed about. You weren't born with clothes on, and you couldn't bathe yourself as an infant or toddler. She did that for you, or your dad did. So there's nothing that she saw that she hasn't already seen at some point. YOU are the one who needs to GROW UP some and recognize that your body is nothing to be ashamed of.