12. Derek Jeter
In the past few years, the Yankees star has been linked with Jessica Biel, Gabrielle Union, Scarlett Johansson, Mariah Carey, Jessica Alba and Vanessa Minnillo. That's only the major celebrities, and it's not even counting his tangled, on-again-off-again relationship with Alex Rodriguez. — Kristin Gangwer

11. Anna Kournikova
The Russian tennis sexpot confirms all suspicions that sports are just an excuse to get naked for FHM, act all sexy in commercials and make out with Enrique Iglesias. Bonus slutty points: appearing in ads for Berlei's sports bras, whose tagline was "only the ball should bounce." — A. Calhoun

10. David Beckham
Sure, the bronzed soccer god claims he's faithful to his wife, Victoria "Posh Spice" Beckham. But even if you overlook the stories from his alleged extramarital conquests — such as those of the Australian model who claimed that, while text-messaging, Beckham called himself "Peter Pan," her "Tinkerbell," and then-pregnant Posh "Wendy" — you can't ignore Becks' ongoing sexual obsession with himself. Anyone who hangs out on his balcony and yacht in tighty whities, poses for photos while kneeling topless on a bed (ass toward the camera lens, jeans pulled down just-so, keeping the boots on), and stars in his own 168-page coffee-table book is asking for it. Posh and Becks have moved to L.A., where Beckham has signed a $40 million contract to play for the L.A. Galaxy. This summer, they'll star in their own NBC reality show, Life With the Beckhams. You can't get much sluttier than that. — NA

9. Babe Ruth
The legendary slugger's teammate Ernie Shore liked to tell a story about Ruth bringing a woman into their hotel room. Sex noises kept him awake for hours; after he finally fell asleep, Shore later awoke to find Ruth asleep and the woman gone. He also noticed four or five cigar butts next to the bed, about which he inquired when Ruth woke up. To which Ruth replied: "Oh, that! I like a cigar every time I'm finished." (Buh-dum-bum.) The story may be apocryphal, but Ruth's sluttiness is a known quantity; he often boasted of having slept his way through the entire staff of a St. Louis brothel in one night. — KG

8. Tonya Harding
Famous for conspiring to knee-whack her alpha-female rival, Nancy Kerrigan, the former figure skater makes this list on the strength of her star turn in the Citizen Kane of celebrity sex tapes. Known colloquially as "The Wedding Video," the tape shows Harding getting it on with her ex-husband/high-school sweetheart/fellow conspirator, Jeff Gillooly. Penthouse published stills around the tape's release in September 1994. Fun fact: Harding claimed she was "drunk as a skunk" while the tape was being made. — KG

7. Mickey Mantle
Peter Golunbeck's forthcoming "inventive memoir" of Mickey Mantle, titled 7, has been criticized as salacious, but Golunbeck, a long-time sportswriter, swears the stories therein are all true: Mantle and teammate Billy Martin traded wives; Mantle slept with Marilyn Monroe; Mantle preferred the company of twin sisters, and so forth. If these tales seem far-fetched, you might first consult Jim Bouton's legendary tell-all, Ball Four, which depicts Mantle and his fellow Yankees as unabashed pussyhounds, often found hanging out on roofs, trying to catch women changing in adjacent windows. Then you should check out what the self-proclaimed "All-American Boy" wrote back to Yankees HQ, when the latter party solicited his most outstanding memory of Yankee Stadium for a 1973 anniversary celebration. Needless to say, said recollection was not celebratorily employed. — PS