If you do not want to be a tattletale, then you have to for this situation. The best thing to do would be to tell your parents, they are pretty much the only ones that can stop.

Tell your parents, that he is watching porn, just tell your parents everything if your that concerend

Firstly, I don't think it is even very legal for someone under-aged to watch porn, secondly he's only 13 for God's sake... Thirdly, rather than trying to 'stop' him having sex (if they both have their minds set on doing it, you're unlikely to stop them unless you physically intervene), I'd suggest you REALLY try to make sure he uses a condom or something, if he doesn't and worst comes to worst, it's possible that you'll have a Nephew or Niece...   Again that's something I'll stress; rather than trying to force abstinence, try to force contraception until they're actually ready to have a child (that 'is' after all, the naturally intended purpose of sex, and sex-drive.)   Barring all that, it's not 'really' your place to decide whether or not other members of your family have sex... But it's certainly noble to look out for them and make sure they know what they could end up getting themselves into : /

WELL IM THIRTEEN AND I WOULD WANT TO FCK MY GIRLFRIEND TO BUT IM SMARTER THAN THAT CAZ SHE PROBABLY WOULDNT WANT TO THE MOST WEVE DONE IS MADE OUT AND SHES NOT A SLUT SO TELL UR BROTHER TO STOP BIENG SO HORNY AND DATING SLUTS AND WHORES THIS SHOULD HELP AND IF THEY BOTH ARE JUST REALLY INTO EACHOTHER GIVE HIM A TROJAN AND OR CONDOM MOST LIKELY HELL PROBABLY HAVE A ORGAZM BEFORE THEY START AND IT WELL NEVER HAPPEN TILL HE GETS OLDER

I'd give him a comprehensive lesson on safe sex.

Give the guy a condom if you cant stop him than at least stop him from getting the chick preganet

Tell your parents- it's not your responsibility. And if his big sister trys to do things to block him in any way, that just makes the goal much better to him. It's forbidden fruit. He needs to be taught that sex is an activity done between consenting adults- he cannot "tell" his girlfriend they will have sex, and he should not try and pressure her either. He needs to know that sex is an activity with responsibilities. He needs to learn about birth control, he needs to learn about condoms. He also needs to learn that just like regular movies do not depict the lives of people realistically, porn movies do not depict sex realistically. They were not created for sex education, they were made for entertainment.

Buy him condoms, show him what STD's are (pics videos). Show him the numbers of infected with just the most common permanent types, try Herpes and HPV. Let him digest the math. Then, take the approach of loving counsel not enforcer. The goal is not to scare him, just to explain the facts and help him through life.

just let him go he see what is like thane he will say im not rady and he will udestand

if your shit haed bother wonts sex let him go im 13 i did and i wish i naver did twll him tahat came from a guy of net

Don't let her come over, or don't let them leave the living room. Don't let him go over to her house UNLESS you call her parents and let them know the kids "plans". Show him a childbirth video, and pictures of herpes, and genetal warts. Tell him that the 1st time sucks and if he is bad she will tell everyone at school he is bad in bed, and no girl will have sex with him again. Use his male ego to make him wait.

First of all, kids should not be watching that crap, and secondly, i would get rid of that smut, and thirdly, i would tell my parents all about it, and hope and pray they reach to him. Porn is all BS! They do not portray the right way of sex. People have plastered it everywhere around the world making people think that that is how sex should be, when it's not. Personally, porn should be banned for everyone! It's highly vulgar and is highly demoralizing. Sex should never have been exploited in the first place, b/c it's a private and sacred thing to be only saved for marriage! And the way it has been exploited and portrayed so abominably, has screwed up people's perception on sex, and is why society has gotten so disgusting with sex, and poisoned our minds with the despicable falsification of something that is meant to be pure and innocent between two married people.

When I was 13 and I didn't want to have sex with my girlfriend sure, I wanted to sometimes, but that's natural! Tell your brother that he could get really sick from STD's and stuff, show him some pics, videos and tell him tha he souldn't until he is older,, also tell him it is illeagal until 16, or something like that.

I would tell my parents. That's their responsibility after all.

its normal for a 13 year old to be looking at porn, its not normal for him to be having sex, i would confront him, or i would tell your parents, they have more experience, and probably would know what is best.

Let him go on about his business and set up his *date* but just before he goes, open up a bottle of *Doe in estrous* and splash him down with it. That'll fix his *date* prospects for a few more days.

If you feel comfortable, and I don't know your age, he needs to understand what sex is all about. Porn does not paint the whole picture. It gives him the how, but not the when, where, why, and what.

Well, he's underage and can be prosecuted for rape if she is underage too. I think you need to tell your parents.

my little brother is 12 and if i knew he was doing that i would flip im sorry but i think i would have to tell my dad...maybe you should too

Does he realise if he has sex with his girlfriend it will be against the law as he is still regarded as a minor! If he was found out and she got pregnant he would go to prison and she for both participating. You need to speak to an adult you trust or your parents if you do, to instill some sense into him. This is no laughing matter!

I am not sure how old you are, but it is irrelevant. I know this may sound patronizing, but I mean this in a very honest and real tone. Humans are sexual, most humans lose their virginity at the age of 11, most discover masturbation and 'porn' much sooner than that. This is natural and good. Trying to disturb this natural thing is a terrible act. If you destroy one part of an eco system the entire system falls apart, that is nature. You are being brain washed into believing that there is some negative aspect of sexuality. If two people didn't have sex, you wouldn't exist, I am glad you are here, I sure hope you are too. I am not sure if religion is telling the government to teach people sex at a certain age is bad or if the government is solely responsible to some extent. I do know that the notion that -any- kind of sexual activity being banned until you are 18 years old is a very offensive and repulsive thing, I believe a large majority of people agree (which is what makes me wonder who or why they are trying to disrupt sexuality). I discovered masturbation when I was around 4 years old. That is good. There is something wrong with those who are not sexual in some manner, seriously. They are likely undernourished.

Speak to your parents. Let them do their job. This is not up to you. I know you love him and care what he is doing, but you are not his parent.

Let him do it

i would not let your brother have un-protected sex if he does not stop you should make sure he has a condom or if you just dont want him to have sex at all just let him ''jerk off'' it's natural for young boys to do that.

Make a bargain with him. Tell him you will buy him porno if he will wait a couple years to have sex. You can only hold it off for so long.

First let him and her know that condoms rarely work. My brother got his girlfriend pregnant 3 times. He swears he used condoms and she was on the pill the 2nd and 3rd time. The first two she aborted. The last pregnancy she couldn't do it anymore. Had my nephew at 17. First of all the pill only works correctly if the person is vigilant. Miss one day and its oopsy time. As for condoms they are not flawless. Ever pull a balloon out of a bag of balloons. You will find at least a few that have a small hole. Condoms are the same. Needless to say they would both be showing their immaturity to consider taking the risk of bringing a child into this world when they are not self supporting. Not to mention that most young parents end up resenting each other and the child that ties them to obligations. I always believed people should not have sex until they are 100 percent ready for the possible consequences. Tell him also that a little bit of jelly and a magazine will help him out till then. And tell your mom. Also there are some nice picture on the web of venereal diseases on the internet. Show him after dinner.

Slap him and tell the girl's parents.