Hey man dont be so hard on yourself. Look at the way the Greeks and Romans handled things and it will seriously cheer you up. It is total normal biology to be attracted to 12/13/14 and beyond; I am myself actually. Don't let bullshit modernized western law make you think you are a piece just because you have natural human responses. Good luck mate.
I know how u feel bub there is nothing wrong with liking them i do to just don't act out on it and u won't have a problem
Or you could not be a delusional idiot like #1, and realize that you have an obsessive-compulsive disorder. You need to quit porn. There is an assload of scientific evidence that shows it fucks up your brain. There are lots of guys who are having the similar problems but nobody wants to talk about it. Check out NoFap.