Dudeee they are just kids nothing really happens. They didn't break any law yet and remember the setting they can marriage at young age, even right after birth. Until the girl get 18 then you can call her pedophile in our society, but wait the settings man they already have that relationship since childhood. It's just not right but it isn't not right fiction man, stories anything can happen.
Edit: is there anything sexual? Nope there aren't it just your dirty mind.