I came accross this radio interview on a new service in a local hospital in Dublin helping people  to Understanding Sexuality and relationships. Especially where an interest  in certain paraphilic behaviour on line causes problems in their relationships

you can hear it here

http://www.rte.ie/radio/radioplayer/rteradiowebpage.html#type=radio&rii=9%3A20221324%3A133%3A05%2D07%2D2013%3A