"For the present discussion, the important point is that many child molesters cannot be meaningfully described as homosexuals, heterosexuals, or bisexuals (in the usual sense of those terms) because they are not really capable of a relationship with an adult man or woman. Instead of gender, their sexual attractions are based primarily on age. These individuals – who are often characterized as fixated – are attracted to children, not to men or women."
http://psychology.ucdavis.edu/rainbow/html/facts_molestation.html