Anyone who has done any reading on the subject, will know that Pederasty has been rooted in homosexuality since the time of Ancient Greece.

Some much needed information will be found here WIKI

"Some modern observers restrict the age of the younger partner to "generally between twelve and seventeen",[6] though historically the spread was somewhat greater. The younger partner must, in some sense, not be fully mature; this could include young men in their late teens or early twenties.[7]

While relationships in ancient Greece involved boys from 12 to about 17 or 18,[8] in Renaissance Italy they typically involved boys between 14 and 19,[9] and in Japan the younger member ranged in age from 11 to about 19.[10]