I know it's upsetting because it changes things in your relationship with your dad and while right now, it seems like a HUGE deal, in the adult world he lives in, it is not.

I won't argue whether porn is good, bad or indifferent. Anything in excess can be bad but this may or may not be the case with your dad.Let me clear a few things off the table:

- men do enjoy images of naked women in sexual situations and it does not necessarily mean your parents are having "intimate" relationship problems. (A pervert has an unhealthy and exploitive "relationship" with porn or some other sexual behaviour. Normal interest in sexuality is normal; unhealthy interest is not normal but your Dad's collection may or may not be over the top.)

-The role of porn in their marriage - good or bad- is between them and only them. You should not have been exposed to this but it happened- by accident. You should not be rooting out more "evidence" that your Dad is a "perv".

-This has damaged your relationship with your dad. I hope you will still accept the fact that - unless you have other evidence of other wrong-doing- he is still your father and he still loves you, provides for you and protects you. He is feeling very guilty about what you accidentally saw and he's trying to convince himself that A: you did not see what he hopes you did not see, and B: if you did see it, you either didn't understand it and will forget it or that it will not harm you psychologically.

I strongly advise you to talk to him privately and tell him you saw him on the computer and that it upset you. He'll be embarrassed but hear him out- he's not a pervert but he got caught enjoying a sexual fantasy by his pre-pubescent daughter and he will not know how to handle that situation.

- Your Mom knows about this, I can almost guarantee it. Leave it alone and leave it between them. They are adults and while I know parents' sexuality grosses out their kids (at any age, trust me,lol!) it is a normal part of adult life that THEY have negotiated within their marriage.

- I know you are still upset about this if you considering running away; that's the way a lot of people your age would try to handle it but it will do not good and will only end up harming you. So please handle it another way, the way other kids your age can handle similar things (and similar things do happen).Please talk to a counsellor at school, or a teacher. If you have a religion, you can talk to your religious leader in confidence just like you can talk to a school counsellor in confidence. They will not reveal what you say to anyone unless you give them permission or they believe you or another child was abused. Since that did not happen here, you don't have to worry about what you tell the counsellor. If you still don't want to talk to them but want to talk to someone about it you can use the public forum at http://smart2ask.org/SimpleMachines/index.php?boar... . (I own that site - it's in Canada and not subject to the US COPPA laws requiring you to be 13.I believe kids under 13 also need help!) It is public so if you use it you should use a fake screen name - not your real name. And you'll have to register first. If you happen to live in Canada you can also call, toll free, the Kids Help Line at 1-800-668-6868. There is no record on your parent's phone bill.

But I hope you will trust a school counsellor or teacher. They can and will be able to help you sort things out.