You arent a bad person. If you lived in Afghanistan you wouldnt be looked at twice for desiring a young boy.
If you are exclusive, you run into some trouble. You can't ever take any action that involves a child. If you can convince yourself it's ok, read some stories from abuse victims. What they go through is pretty awful. No matter what you do, if the relationship is discovered while the chil is still young, they will come out of it little better than someone who was violently raped. You need to be able to respect an individual's life as much as your own. Your sexual gratification is less important than someone's mental well-being.
If you feel like you might offend, seek immediate help.