A few things to bear in mind:
If he is Pervasive Developmental Disorder (PDD) not otherwise specified (or close enough to it to even be considered for a diagnosis) then this unfortunately greatly increases his vulnerability to having been abused. Predators seem to have an instinct for finding vulnerable kids who are least able to understand or report accurately (or believably) and hence will be more likely to help the predator avoid detection. Is this has happened it MAY have contributed to this behaviour.
The boy's approach in using threats - he could be modelling what was used on him. A Pervasive Developmental Disorder (PDD) kid generally isn't good at inventing this sort of thing for himself, they're not good at telling complex lies. Instead, they tend to stick with, "I didn't do it," rather than, "What really happened was this: she did X, then I did Y, she said G, I then replied with Q." And so on. They generally just can't do it well enough to be believable. So if he is Pervasive Developmental Disorder (PDD) in any way, my money is on him having been somewhat nastily abused (in terms of the level of control and threats used) and him now using it to get what HE wants, and also because he thinks this is how it's supposed to be.
If this is what has happened, then counselling (carefully) preferably AFTER confirmation of PDDNOS so it can be taken into account, should be much more productive than is usual in cases of children sexually attacking other children. I could explain why but I don't think I need to, I'm sure you know why. Any counselling before diagnosis should be limited to "what has happened to you?" with maybe discussion tat if it ever did, it's OK to tell because whoever tried to make you kept such a secret told you lies and did the wrong thing. He needs to know he doesn't have to say who did it, it is more important to tell what happened (at least to begin with) so he can begin to understand his feelings about it.
And an example - in difficult child 3's drama class there is a really lovely young man, VERY handsome. He's currently on new medication regime which at last seems to be helping him and has lowered his anxiety, but for the past two years he has been fixated on wanting a girlfriend and wanting one NOW. And she has to be perfect, absolutely knockout gorgeous, and NORMAL, not severe Asperger's like him. He sees a girl, mets her for the first time (maybe the sister of a classmate, arrived with parents to collect the kids) and he's instantly in love which of course is generally unrequited because
a) girls like that generally already have boyfriends, fiances or even husbands; and
b) he comes on so strong it's scary.
He then goes off in hysterics because life is not worth living, nobody loves him, SHE doesn't love him, he might as well kill himself. And he might have only met her five minutes earlier! But the crying sessions would last for weeks or longer.
I don't think he was ever inappropriate, but he is always closely supervised.
Meanwhile there are girls in his social group who sigh after him (he IS very handsome - and funny, and bright, and loving to his mother) but he's not interested in THEM. He knows them, knows their imperfections (because we all have imperfections). One young girl in particular is very pretty, very bright and very Aspie. And she likes him; he likes her, as a friend.
As I said, I don't see difficult child 3's classmate as a sexual predator, but he COULD be seen that way very easily if he's misunderstood. It would also be easy for him to act inappropriately without fully understanding just how serious it is.
Counselling hasn't worked for our young friend; he's too obsessed. However, helping his anxiety reduce has made it easier for him to cope and I think NOW counselling is beginning to work.
If your young man is like our friend, it won't be easy to get through to him. Different methods will need to be used if he's really Pervasive Developmental Disorder (PDD), I would be hunting out a counsellor experienced with Pervasive Developmental Disorder (PDD).
Also, when I say "counsellor" I am referring to a trained psychologist or similar, whose job it is to support these kids, provide emotional therapy etc. You might call them a therapist or psychiatrist. Semantics, plus different methods in different countries.
Do what you feel fits best in your area. But be prepared to have to think outside the square, to get the best results.
I hope you can sift through this mess without too much more muck getting in the way. Nobody should have to deal with this, but we do not live in a perfect world.
Marg
