sex

I would reccommend that you speak to a counselor about it, it is not normal to have these feelings, it is best to sort it out now so you never act on them

At your age I would say you need to seek professional advice for the sfaety or yourself and those around you. I think your headed in the right directioon as far as you admitting to your problem. I wish you the best of luck and it will be the best thing for you to get help and talk to someone.

i have incest fantasies all the time. so instead of acting out on it i just read fantasy stories and masterbate. i would never act on these desires, but it theres nothing wrong with you being curious

Actually the fetish of incest is more common than not, it doesn't mean you're messed up. Again like I said in another thread about beastiality. It is found illegal because it is deemed by the courts, to be immoral (yes christian rule is equative to US policy). Many people live fantasies in thier heads about these kinds of sexual acts (I dont agree with it). Some even actually consentually live these sexual acts out, with relatives (again I don't agree). However everyone is different and I can't label any bias opinion onto you, if you wish to seek council for your thoughts that is of your own choosing but if you aren't having problems keeping the fantasy to your self and not offending family members than there is no issue. It only arises as a problem if you are tempted (really think you will) rape your mother/father/sister/brother/cousin etc.... That is when I feel as though, someone needs council for thier sexual appetite.

Summing it up ~
No it is not wrong to think this way, or act this way consensually (other than the fact that in most states you are breaking the law). However it would be wrong of you to forcefully convince, coax or rape a relative sexually.
Get help if ya need it, if you're not doing any harm than you don't need the help IMO

(but me personally, I don't agree w/incest, but it is a very real fetish)

-Ze Eric