My son is 71/2 years old. Him and my nephew (4 1/2yo) are really close, alot like siblings. My nephew told me awhile ago that my son "kissed" his private parts. Of course I asked my son what happened. He denied that anything had happened. I discussed with my son that his privates are only for him to see & touch and other peoples privates are for themselves only. The other day I heard my nephew tell my other nephew that my son kisses his private parts. I dont know what to do. I dont know if my nephew is referring to the first time or if has been happening often. If it was one time is this normal???? I dont know what to do & I am very scared & disturbed about the situation!