Are underage people who persue underage people child enthusiasts?
From the wikipedia article of child enthusiasm:
"child enthusiasm or paedophilia is a psychiatric disorder in which an adult or older adolescent experiences a primary or exclusive loveual attraction to prepubescent children, generally age 11 years or younger. As a medical diagnosis, specific criteria for the disorder extend the cut-off point for prepubescence to age 13. A person who is diagnosed with child enthusiasm must be at least 16 years of age, but adolescents must be at least five years older than the prepubescent child for the attraction to be diagnosed as child enthusiasm."
17yr old on 11yr old fits the bill, so yep.