How do I keep her out?(short and long version)?

Hi , i'm a mom and i think there is nothing wrong with washing the sex scene with your mom in a movie, remember that your mom was once your age and she knows every thing she been there to. If you really want to see this movie you really do not have a choice but to go with your mom since you are still under age. Don't be embarrassed of your mom wash the movie with her and enjoy her while she is still alive.