I found this Internet Article rearding the issue:-
http://www.nas.org.uk/nas/jsp/polopoly.jsp?a=2187&d=364
Hope this helps.
Hello.
Sounds like a typical 14-year-old boy to me--autistic or not. Hormones raging, and an overwhelming interest in sexual pleasure.
Autism is not my area of expertise, so I can't speak to your concerns; however, it sounds like your son has boundary issues which need addresses, and perhaps some loneliness issues as well.
I'm puzzled as to why you're blocking his computer access, but that's your decision.
If you want a referral to a clinical sexologist in your area, write back with your location, and I'll provide you with a reference. Best of luck to you. Dr. J