I caught my 4 year old daughter and her 6 year old brother naked trying to put his penis into her vagina. I separated them and questioned them, telling them that area is private and no one should be touching it, and that you should not touch anyone elses private parts. My daughter explained that they were playing naked doctor. I told them both that if anyone tried to touch their private parts, to tell them no and come and tell me or daddy about it. The next morning, their dad caught them doing the same thing! He was very upset because I had just explained to them the day before that it was innappropriate behavior. They were both put in time out for not listening to me and then we told them again what was to be expected of them. We also decided that for the time being that our daugter would sleep in the bedroom with us with the door locked to keep this from happening while we are sleeping. I am concerned about my daughter because she is only 4 and has been using toys to masterbate. She also explained to me that she had a dream that everyone was naked and having a party and that is where the idea came from. I dont know what to do! Should I be worried about her possibly being molested?