When I first saw the headline I said to myself that this would explain a great deal about Ms. Jolie. However, when I read it I thought it really didn't sound all that different from what many children do when they are that age. Kissing boys and touching each other is not unusual. I don't know how that is perceived to be sexual by her. Maybe that is her problem or maybe that is a headline which is designed to get people like me to go OMG, I have to read this.
When I read the headline I imagined the article would talk about she and boys had full on sex next to the cubbys and that a first grader taught her how to give a proper lap dance. Playing doctor is nothing.