With a nod to Magyar for entertaining levels of ridiculous, it's interesting (in a sad way) to note that there are a substantial number of female adults who abuse male or female children as well. The difference in response seems to be the largest reason why this type of abuse is so rarely reported.
When a 25 year old man has sex with a 15 year old girl, most everyone thinks he is slime, regardless of whether the girl consented. (I realize that her consent isn't worth anything legally, but it matters for the girl involved, to be sure.) I agree that it would be a rare sort of couple formed this way in which the man wasn't taking advantage of the girl and I totally support the prosecution of the man.
When a 25 year old woman has sex with a 15 year old boy, most people react by wondering what the woman was thinking and congratulating the boy. In rare cases, it is prosecuted, but not usually. Again, it would be a rare sort of couple where the relationship was sound and I support the prosecution of the woman.
A female is the perpetrator in 1/4 of reported sexual abuse cases, but it is almost always assumed that a pedophile is a man. There is also evidence that boys underreport abuse by females, so that number is likely higher.
Here's a link to a 1997 US government statistics compilation showing the data for that year. The table is a bit messed up, but if you shift the first and second numerical columns left 1, it makes sense.
I've got no history in this, nor have I any particular inclinations of sympathy toward the perpetrators of either sex; I've just always wondered why it's so badly underreported... It seems like moms sexually abusing their kids would be so much more outrageous and "
news worthy" than dads, but you just don't see it.