What a terrible story. I think both the boys and girls should get house arrest with those ankle alarms! Keep them out of trouble and thinking about what they did for a while! It is not appropriate for six boys to go to a park to have se.x with two girls who may very well be lying about their age. I doubt they actually cared because they were likely only thinking about getting laid. They boys knew they outnumbered the girls and knew there was the potential for things to get out of hand. If those girls were being suggestive and initially wanted to have s.ex, but then changed their minds, they likely would feel compelled to go through with it because they were outnumbered. The girls should know the age of consent and never have lied about their age. They were all foolish to have put themselves in that situation.
Seriously, why don't parents know what their kids are doing on the internet and why are kids allowed to stay out so late, and unsupervised?
Of course kids who hit puberty are feeling more s.exual and are curious about se.x - but it is up to parents and society in general to encourage kids to wait until they are more mature and can handle the complications and consequences of having s.ex.