the whole penetration with a foreign object thing could simply be something they thought of themselves. if it isn't sexual abuse then simply move on. certainly watch for further behavior, but move on.
also talk about statutory rape, sexual contact and how it should only be done in a dedicated relationship when she is much older, etc. just don't make it taboo or flat out tell her never to do it again, she needs to know why.
Yes, I am inclined to think penetration with a pen is beyond normal...a finger, or fingertip, I can see, since my daughter does that to herself, and that is not so invasive or painful as a pen! I just cannot picture my daughter taking the initiative, grabbing a pen in the girls' home, and doing this...the social worker I spoke to thought that it was likely the girl was asked leading questions by her very upset parents, like "did she put anything else in you? What, a lipstick, crayon, pen?!!" and the girl maybe exaggerated, for whatever reason. The parents are at each other's throats in the divorce, and the girl is under a lot of stress.
I do think it must have been both girls' idea (how could my 4 year old preschooler, who is younger, force the 5 year old kindergartner, in her own home, with her mother and nanny in the house, to do something if she wasn't wanting to? Especially having something put into one's anus..it isn't something a child would sit still for, you know? The normal reaction would be to squirm, jump, yell, get out of there as quickly as possible!) We are going to take her to a specialist...a doctor who deals in these kinds of matters, who is trained to assess whether the child might have been abused. thanks for listening.
I actually disagree and think I'd be more concerned than that. I think the penetration with a pen is beyond the scope of normal play. I would be concerned and watch her very closely. good luck
And by the way, child on child molestation is a sad cycle. Once a child has been molested, they are indeed very likely to carry out the same actions on another child.
Peace and luck
Oh my. Mothers do over react, don't they?
My guess is this was both girl's ideas, and of course there were no witnesses, this wouldn't have happened in the presence of others. ;D
I totally agree with your pediatrician - this is typical behavior in unsupervised children.