Sex crimes aren't correlated to sexual orientation. Rape is not about sex and pleasure but power and anger. Consequently, many rapists and molestors aren't also the orientation their victims would suggest because the crimes were never about love and pleasure.
"Myth: All sex offenders are the same and they can be easily detected.
Reality:
CHILD ABUSERS
* A small percentage of those who offend children would be considered pedophiles and would be described as having a sexual preference for undeveloped bodies without secondary sexual characteristics.
* The majority of child abusers have more of a thinking problem rather than a sexual preference for children. These offenders have a capacity to sexually assault children rather than having a sexual preference for children and they tend to have significant cross over rates, often committing rape or other types of sexual assault.
RAPISTS
* A small percentage of those who commit sexual assault have sexual preference for sexual violence, victim humiliation and shame, which usually renders them dysfunctional under consenting circumstances.
* The majority of rapists have more of a thinking problem rather than an arousal connection to violence, demonstrating a capacity to rape under certain circumstances. These situational rapists tend to have significant cross over rates into molesting children.
Myths and Misconceptions About Sex Offenders | Oregon Sexual Assault Task Force
"Myths and Misconceptions about Sexual Offenders"