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Carrie and Big, Sex and the City
As a toxic bachelor, Big (Chris Noth) was no good for Carrie (Sarah Jessica Parker), except in the sack. She'd find other, better boyfriends (Aidan!), but their red-hot connection couldn't be denied. Until the movies, that is.
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Number Six and Gaius Baltar, Battlestar Galactica
Sure, Number Six (Tricia Helfer) was a robot — and often a figment of the imagination at that — but she still managed to keep Baltar (James Callis) in a constant state of seduction, taking the pair to unearthly levels of passion.
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Shane and Carmen, The L Word
Shane (Katherine Moennig) bedded almost any woman (and sometimes man) she encountered. So when she resisted Carmen (Sarah Shahi), it made the final act after a long game of cat and mouse even hotter. And who can forget the lap dance Carmen gave her in season 3? Not Google.
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Joan and Roger, Mad Men
This long-term affair between a boss and his employee in the 1950s would seem terribly cliché if it weren't for the stellar acting. In public Joan (Christina Hendricks) and Roger (John Slattery) may be all poise and quips, but in private their connection seems to run deep.
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Lafayette and Jesus, True Blood
Sex may have often been just a job for ex-prostitute Lafayette (Nelsan Ellis), but when it comes to Jesus (Kevin Alejandro) it's a whole other story.
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Anne and Henry, The Tudors
Sure, their love is destined to end badly but until it does, they can't quite keep their hands off each other, and Natalie Dormer and Jonathan Rhys Meyers just keep steaming up the screen.
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Brian and Justin, Queer as Folk
Brian (Gale Harold) and Justin (Randy Harrison) are proof of the old adage that opposites attract, as the seemingly callous older Brian fell hard for the bright sunshine-y young artist, and they lost no opportunity to show their, um, affection.
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Nate and Brenda, Six Feet Under
If anything was clear when Nate (Peter Krause) and Brenda (Rachel Griffiths) met on an airplane in the first episode, it was their chemistry. The two found their way to an airport closet for one hot hookup as soon as they landed.
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Helo and Boomer/Athena, Battlestar Galactica
Clones, robots, intergalactic fighting — nothing seemed to dampen the draw that Helo (Tahmoh Penikett) had to the Cylon he once knew as Boomer (Grace Park) but who'd be renamed Athena.
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Sookie and Bill, True Blood
On a series soaked with sex, the union between this vampire (Stephen Moyer) and fairy (Anna Paquin) stands out for its intermingling of romance and raw animalism.
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