I have a four year old little girl and have noticed that recently she has started going potty/pretending to go potty outside in front of her friends and then recently walked into her room when her cousin, who is 7, was over. I found out that they were showing eachother their privates. I am concerned with this behavior and want to know if i should be doing something, if this is normal development or what? The cousin was exposed to a girl his age that was showing her undies to her classmates and then trying to get others to do the same and I also found out that a girl from daycare who is 6 has been playing with my daughter and this girl was suspended from school for showing her privates to boys and talking about sexually explicit things. I am very worried that this girl and now her cousin have affected my daughter in a way that has damaged her. I, obviously know that the two children mentioned above have been adversly affected from their own experiences and am concerned about my daughter.