Your stepmom is a very busy woman and just because she's too much in a hurry to close the bathroom door all the way sometimes doesn't give you permission to peek in on her. She knows what young men do in their rooms alone and doesn't peek in on you. In fact, if you think there shouldn't be any privacy around this house then... take it out. Take out your cock and jerk it off for your stepmom. If you're so interested in seeing your stepmommy pee then take out your cock and jack it for her and she'll give you quite and eyeful.