Some pedophiles limit their behaviors to exposing themselves or masturbating in front of the child, or fondling or undressing the child, but without genital contact. Others, however, compel the child to participate in oral sex or full genital intercourse.
Pedophilia is a paraphilia that involves an abnormal interest in children. A paraphilia is a disorder that is characterized by recurrent intense sexual urges and sexually arousing fantasies generally involving: nonhuman objects; the suffering or humiliation of oneself or one’s partner (not merely simulated); or animals, children, or other nonconsenting persons. Pedophilia is also a psychosexual disorder in which the fantasy or actual act of engaging in sexual activity with prepubertal children is the preferred or exclusive means of achieving sexual excitement and gratification. It may be directed toward children of the same sex or children of the other sex. Some pedophiles are attracted to both boys and girls. Some are attracted only to children, while others are attracted to adults as well as to children.
Pedophilia is defined by mental health professionals as a mental disorder, but the American legal system defines acting on a pedophilic urge as a criminal act.
The focus of pedophilia is sexual activity with a child. Many courts interpret this reference to age to mean children under the age of 18. Most mental health professionals, however, confine the definition of pedophilia to sexual activity with prepubescent children, who are generally age 13 or younger. The term ephebophilia , derived from the Greek word for “youth,” is sometimes used to describe sexual interest in young people in the first stages of puberty.
The sexual behaviors involved in pedophilia cover a range of activities and may or may not involve the use of force. Some pedophiles limit their behaviors to exposing themselves or masturbating in front of the child, or fondling or undressing the child, but without genital contact. Others, however, compel the child to participate in oral sex or full genital intercourse.
The most common overt aspect of pedophilia is an intense interest in children. There is no typical pedophile. Pedophiles may be young or old, male or female, although the great majority are males. Unfortunately, some pedophiles are professionals who are entrusted with educating or maintaining the health and well-being of young persons, while others are entrusted with children to whom they are related by blood or marriage.
Source: http://www.minddisorders.com/Ob-Ps/Pedophilia.html
See Also: http://en.wikipedia.org/wiki/Pedophilia