Should teens be allowed to have sex?

Because they are human? What I did with my daughters when they started dating is warn them that they would have such feelings and be prepared. If they were not ready for sex they should not alow themselves to be alone with a boy for long, these things will happen because you both have urges. Be prepared to have reasons to get out of the situation. If your ready for sex, BE PREPARED. You can't expect the boy to be, although he should be.
Most of all, part of being is being able to discuss this with your partner before the situation arises. If you can not discuss sex, you probably are not ready. BUT how many of us do that before we have sex the first time? SO be prepared, like a girlscout.

the same thing that poses adults to have sex...
If she wants to do it there is no stopping her. Just explain to her the dangers, and make sure she is being careful. As for letting her have sex in the house, thats your call. I dont think I would let my daughter just because it would be weird knowing my daughter is having sex down the hall. But if she is having sex than she has more than likely already had sex in your house.

In a nut shell, "Cause everyone else is doin' it."

First off HORMONES! as many others have said! Plus at that age they think they have a lot of "stress" not that they do but they think that way. Sex is a stress reliever. Think about the reasons you have sex. Its not just because you "love" some one. Sometimes you just need that release

When I did it, it was out of curiosity and wanting to fit in. I would definitely NOT give my child permission to have sex in my home and make her think that I am ok with that behavior. I know she'll do it anyway, but I won't approve of it and not in my home.

Why do you want to have sex? Guess what... Same reason! Cause it feels great! I see nothing wrong with an 18 year old having sex. She's 18... not 12.

I think that today's young people have not been properly taught that sex is to be kept for marriage alone, that it is something more than an animalistic urge, that the beauty of it is immeasurable in the right context, and that it is well worth the wait. Instead, they are being constantly taught that they have no control over their desires and that the only option is to give in to them. If I knew it was happening in my house, I would put a stop to it. I think that to allow it to go on is to contribute to one of the things that does more psychological and emotional damage to people than almost any other activity.

If you want your daughter to be a disease ridden hoe, sure, allow it. What the heck is the world coming to?!

If you think about it...in the older days...women and men got married at an early age. In order to have sex it was expected that you be married before this happened. Now adays Hormones are still the same but careers and later marriages are more in later years. So it really comes down to the fact that they just have the same feelings as way back then but no marriage involved. Sad, but true I guess. Just as long as they know the circumstances. However, I would just fall over if I had to listen to the stories. I would just want to make sure protection is used.

She is old enough to do it with or without your permission now, and of course sex is appealing. To be honest, I was having a ton of sex at 18, but I was also in my own apartment and it was with someone I was in a relationship with, not a stranger at a club. That sounds dangerous to me! She couldn't know much about these people and STDs aside (which are scary enough) they could rape her, beat her, kill her, drug her...anything!