What's the only thing better than a sexy movie star?

Two sexy movie stars, engaging in meet-cutes, flirtations, first dates, love scenes and, occasionally, some good wholesome sadomasochism.

We studied the chemistry and measured the heat factor to bring you this list of the sexiest movie couples ever to grace the silver screen.

25. Antonio Banderas & Catherine Zeta-Jones, 'The Mask of Zorro' (1998)
Now here's a man who knows how to use a sword! Sexy Spaniard Banderas won us all over when he undressed the beautiful Zeta-Jones with the simple slashing of his sword, then scooped her into his arms for a sensuous kiss. Call her a damsel in undress. Muy caliente!

24. Matthew MacFadyen & Keira Knightley, 'Pride & Prejudice' (2005)
Some insiders weren't sure if the young Knightley could keep up with the classically trained MacFadyen on-screen, but the two ultimately proved to be a perfect pair in this adaptation of the beloved Jane Austen novel. And who are we kidding, people? English accents are hot.

23. Jack Nicholson & Jessica Lange, 'The Postman Always Rings Twice' (1981)
They have an adulterous affair and off her husband, so we know that Frank (Nicholson) and Cora (Lange) are very, very bad. But what really got people going in this adaptation of the James M. Cain novel was the kitchen-table sex scene that looked so hot, audiences questioned whether or not it was actually simulated.

22. Richard Gere & Julia Roberts, 'Pretty Woman' (1990)
Scenes like the one in which Gere's corporate raider is lying in a steamy bubble bath with Roberts' never-ending legs wrapped around him left moviegoers breathless. The fact that audiences could fall so hard for the story of a John and his hooker with a heart of gold speaks volumes about the stars' magnetism.

21. Naomi Watts & Laura Harring, 'Mulholland Dr.' (2001)
What does David Lynch's neo-noir mind-bender all mean? Who cares, when the movie offers a scene as steamy as Watts and Harring's unexpected detour into girl-on-girl erotica. Though Watts hasn't done anything nearly as risqué since her star-making role, we're still holding out hope.

20. Denzel Washington & Sarita Choudhury, 'Mississippi Masala' (1991)
"Hot and spicy, Miss Masala -- that's what I'm going to call you," says Denzel's Demitrius Williams, smitten with the Indian beauty he first encounters in a fender bender on the rural roads of the titular state. Their ensuing passion in this story about love and racism is sensual, sweet and, yes, hot and spicy.

19. Omar Sharif & Julie Christie, 'Doctor Zhivago' (1965)
Sharif brought new meaning to the description "tall, dark and handsome" as Dr. Yuri Zhivago, the surgeon-poet torn between loyalty to his wife and true love for his mistress and muse, Lara (Christie), in this Oscar-winning epic tale set against the backdrop of the Russian Revolution. And Christie wasn't too shabby herself.

18. Ryan Gosling & Rachel McAdams, 'The Notebook' (2004)
They're star-crossed lovers -- Allie (McAdams) is rich, Noah (Gosling) poor -- whose passion survives war, family betrayal, even betrothal to others. Gosling and McAdams make us believe in the young love that becomes the enduring bond able to bring them back from the abyss of Alzheimer's in their twilight years.

17. Robert Redford & Barbra Streisand, 'The Way We Were' (1973)
Katie (Streisand) is a Jewish Marxist activist, and Hubbell (Redford) is a Goy Boy gadabout writer -- and together they prove opposites can attract, quite mightily. In one unforgettable scene, her face radiates with the sheer bliss of waking up and finding the super-studly Redford in her bed. Good morning, indeed.

16. Patrick Swayze & Jennifer Grey, 'Dirty Dancing' (1987)
Sparks are bound to fly in a movie about sexually suggestive rump-shaking, and what girl didn't want to be Grey when the swaggering Swayze boldly proclaimed, "No one puts Baby in a corner!"? Though the two actors initially didn't get along off-screen, their chemistry in front of the camera is undeniable.

15. Marlon Brando & Eva Marie Saint, 'On the Waterfront' (1954)
"It felt like he understood me more than I understood myself, knew more about me than I felt I knew about myself," Saint said in Moving Pictures Magazine, recalling her relationship with Brando while making this Oscar-winning classic. It's no wonder: Their intimacy is palpable during every frame together.

14. Oliver Martinez & Diane Lane, 'Unfaithful' (2002)
The lust-soaked film about an out-of-control affair between a wife (with Richard Gere as the cuckold!) and a mysterious book dealer demanded plenty of endurance -- and nudity -- from its stars. Director Adrian Lyne reportedly did so many takes of their explicit sex scenes, he repeatedly used up full magazines of film. Tough job ...

13. Heath Ledger & Jake Gyllenhaal, 'Brokeback Mountain' (2005)
It may not be the most conventional love story -- it's about two "gay cowboys," as it was simplified during its release -- but it's certainly one of the steamiest, with two of Hollywood's hottest actors boldly giving themselves over for their craft. The forbidden love tale also produced the unforgettably heartbreaking confession, "I wish I could quit you."

12. Ryan O'Neal & Ali MacGraw, 'Love Story' (1970)
So young, so smart, so ... doomed. The must-see romance of 1970 -- ranked ninth on the AFI's Most Romantic Films list -- had repeat moviegoers bringing boxes of Kleenex to theaters, knowing their tears were about to be jerked by the tragic tale of a working-class Radcliffe girl who wins the heart of a rich Harvard boy.

11. Al Pacino & Ellen Barkin, 'Sea of Love' (1989)
There's nothing that spices up a relationship like the possibility that your gorgeous uninhibited lover just might be a serial killer. And that is what poor ol' besotted Al has to contend with in this sexy, tight thriller that leaves audiences unable to stop humming that song.

10. Taye Diggs & Angela Bassett, 'How Stella Got Her Groove Back' (1998)
If there is any man in the world who can help a woman get her groove back, it's got to be the super-sexy Taye Diggs. The well-matched couple make the screen sizzle as Angela's "cougar" tourist embarks on a steamy romance with the young islander.

9. Leonardo DiCaprio & Kate Winslet, 'Titanic' (1997)
Did anyone else need a drink of water after seeing Winslet's hand sliding slowly down a steamy car window as she and DiCaprio "got acquainted?" Their playful flirtations and aforementioned deal-sealing are unforgettable, but it's the couple's heartbreaking parting in icy waters that truly immortalized them in movie history.

8. Cary Grant & Grace Kelly, 'To Catch a Thief' (1955)
False identities, breathtaking diamonds, suspicion, deception, a glamorous masquerade party, the French Riviera -- now there's a mix to fuel the passions of even the most worldly sophisticates. Hitchcock's thriller found two great stars at the top of their form, just before Kelly went off to become Princess of Monaco.

7. Clark Gable & Vivien Leigh, 'Gone With the Wind' (1936)
Frankly, my dear, Clark Gable didn't give a damn, and who doesn't love a strong man who puts a sassy woman in her place? These two Hollywood icons, who heated up the screen during a much more conservative time (talk about bringing sexy back), made the Greatest Generation swoon, and it's easy to see why.

6. William Hurt & Kathleen Turner, 'Body Heat' (1981)
In this film noir homage, Turner has Hurt at her beck and velvet-throated call as Matty, a sultry number who convinces her lawyer lover Ned to kill her husband. Every frame drips with sensuality as Matty keeps Ned steamed up throughout the film. Calling it 'Body Heat' almost seems redundant.

5. Burt Lancaster & Deborah Kerr, 'From Here to Eternity' (1953)
The affair between a captain's wife and a sergeant gave this classic drama an iconic scene of lust on the beach. Their horizontal frolic in the surf looked so enticing, it undoubtedly inspired honeymooners everywhere. Also inspired were Kerr and Lancaster, who began a romance during the production.

4. George Clooney & Jennifer Lopez, 'Out of Sight' (1998)
As bank robber Jack Foley, Clooney shows an unadulterated appreciation of J.Lo's sizeable, um, asset as he lies spooned against her federal marshal in a car trunk. Meanwhile, men panted to trade places with him (or at least be the spare tire), while women imagined all the possibilities that go along with Clooney and a pair of handcuffs.

3. Brad Pitt & Angelina Jolie, 'Mr. and Mrs. Smith' (2005)
As John and Jane, the bored married couple who each lead secret lives as master assassins, Pitt and Jolie smolder so strongly on-screen it's a wonder the celluloid didn't spontaneously combust. Their sexually charged battles became foreplay to the kind of makeup sex to which mere mortals can only aspire.

2. Humphrey Bogart and Lauren Bacall, 'To Have and Have Not' (1944)
The noir romance thriller has something that can't be found in a script -- the electricity of the hard-edged superstar and his 19-year-old newcomer leading lady falling in love for real. And then there's its famous line: "You know how to whistle, don't you, Steve? You put your lips together ... and blow."

1. Mickey Rourke & Kim Basinger, '9 1/2 Weeks' (1986)
This erotic drama pushed the sexual envelope already stretched by Marlon Brando's 'Last Tango in Paris' in 1973 even further. Involved in an impersonal affair, the kinky games played by Rourke's investor and Basinger's art gallery assistant devolve into sadomasochism -- but above all, it's their pure sexual lust that sticks with you.