"No longer will my penis remain flaccid and unused."

Quick. Who said that? In what movie? If you guessed Kevin in "American Pie," you're right. The whole movie is about four guys who set out to lose their virginity before they graduate from high school.

Most of us saw it. But do most of us buy into this idea that we should lose our virginity before we graduate?

Mike did.

"I felt like I didn't want to go to college being a virgin," says Mike, 18, who lives in Idaho. "Because I thought every girl I would hook up with would not be a virgin herself."

So he and his girlfriend, also a virgin, ended up having sex before they graduated high school.

"I think many teens want to lose their virginity in high school to avoid being ridiculed in college as being inexperienced," Mike says.

Katie, 16, from Minnesota, agrees.

"I know girls who are worried about going to college as a virgin, she says. "They're considering having sex with the guys they're dating now just for that reason."

But, the truth is, some of this pressure is in our heads. A recent national survey showed fewer high schoolers had sex in 1997 than in 1991 (48.4 percent compared to 54 percent).

Experts say this is because more teens are getting the message that it's OK to wait for sex at least until you finish high school.

"A lot of teens say they don't want to jeopardize their future," explains Bill Albert, spokesman for the National Campaign to Prevent Teen Pregnancy. "They have a lot of dreams and hopes, and they think having sex risks their future. They're also worried about hurt feelings. It's also a fear of AIDS and other STDs.

"A lot of teens that we talked to who have had sex say they wish they had waited," he adds. "And that's true for both boys and girls."

Still, a lot of teens say the pressure to have sex is real. But, they also say its lame to cave and have sex just so you can lose your virginity before you graduate.

"Having sex in a relationship should be an indication and expression of a special place in the relationship," says Dylan, 17, of Minneapolis, "not as a symbol of being on the road to someplace."

"I don't think that you have to have sex before graduation," adds Tricia, 16, from Idaho. "If you have standards -- not to have sex until you are ready -- then you shouldn't feel pressured into having it."

But when it seems like everyone else is doing it -- and you're missing out -- its easy to get sucked in, especially when milestones like graduation or the prom are coming up.

"So-o-o many people (especially girls) feel like all their friends are doing it and they're left out," says Katie, 17, of Oregon. "It just ends up that no one wants to be the last person to have sex."

Still, some say they're going to wait, regardless of that pressure.

"I strongly believe in finding the right person and having sex for the first time when you're actually ready for the responsibilities that come from it," says Annie, 18, from Baltimore. "You might find that special person while you're still in high school, but most likely you won't."

National correspondents Tara Farmer, Idaho, Laura Haduck, Pennsylvania, Caitlin O'Fallon, Minnesota, and Krissy Stautz, Oregon, contributed to this story.