When it comes to teenage girls losing their virginity on TV and in the movies, a few old storylines tend to get recycled. Most of them have to do with the fear of what could happen if the girl doesn't "save it" for the right moment or the right guy. These fictional teenagers with plans to have sex for the first time often "come to their senses" at the last minute, or get effectively dissuaded by someone older and wiser who advocates waiting for the "right" guy to come along -- the good guy, the One, who's trustworthy and kind and loves her for the right reasons.

My So-Called Life's Angela Chase, for instance, backs out of losing her virginity to her longtime crush, the dopey but sexy Jordan Catalano, because she's simply not ready. Rachel Berry saves herself for Finn on Glee after thinking better of her promise to let bad-boy rival glee-club singer Jesse be her first. On Friday Night Lights, a determined Julie Taylor makes a curfew-conscious appointment to have sex for the first time with her new boyfriend Matt Saracen -- only to get nervous and realize that, like her mother warned her, she's not ready. (Julie and Matt do have sex later -- after it's been firmly established over the course of a season or so that Matt is, indeed, the "right" guy.)

On How I Met Your Mother, Robin Scherbatsky realizes her younger sister Katie has plans to have sex with her obnoxious boyfriend when they visit New York together; she enlists her friends to help talk her out of it, and they succeed. American Beauty and What Women Want feature father figures persuading teenage girls away from having sex for the first time with men who don't love them. In 2002's Crossroads, Britney Spears's valedictorian Lucy reneges at the last minute on a pact to lose her virginity with her high-school lab partner, and instead has sex for the first time with Ben, a sensitive musician who once rescued his sister from their abusive dad.

And what happens to the fictional teenage girl who actually goes through with it, who loses her virginity without waiting for a boy or man who loves her truly, madly, deeply, and honestly?

Very bad things, frequently. Sometimes it's immediate karmic retribution: Marissa Cooper from The O.C. "finally" gives in to her jerky boyfriend of several years only to find out soon afterward that he's been habitually cheating. The Virgin Suicides' Lux Lisbon has sex with the school heartthrob on a football field only to fall asleep afterward, get abandoned, break curfew, and subsequently get put under parent-inflicted house arrest for what's effectively the rest of her life. Sometimes it's pregnancy: Juno of Juno, Mary Cummings of Saved!, and Becky Sproles of Friday Night Lights all find themselves pregnant after their first time. And still other times it's paralyzing regret, like Felicity on Felicity. As a 1999 Entertainment Weekly review put it when describing her post-sex antics: "You could read the guilt-stricken reaction all over Russell's face ... she looked ashen throughout the episode."