6 year old girl behavior

I have a 6 year old daughter that is very bright and a sweet girl.  My question is this she has been caught in 3 different situations with her friends doing I don;t know what but they have been clothed in 1 incident and the other they were both on there way to being nude but I caught them before this took place. I have asked what was going on and she just cries everytime I ask and tells me that they were not doing anything.  I do not know how to handle this nor does my husband.  Is this just normal behavior or do you think I may have a bigger problem.  I have contacted a therapist in this situation I was just wanting another opinion.

[Kevin Kennedy, Ph.D.]

Absolutely follow through with the scheduled appointment - that is a prudent thing to do. It will not surprise me if what you hear is that the behavior was within the normal spectrum and requires only firm limit setting and education. But you should not assume this to be the case.