Tuesday brought a shocking report that Arnold Schwarzenegger fathered a child with a member of his household staff while married to Maria Shriver, and kept it under wraps for a decade.
This puts The Terminator in some unpleasant, sex scandal company.
Though they have gorgeous women, money, good looks and fame, these stars apparently aren't satisfied and feel the need to step outside of their marriage.
And like all things in the digital age, those flings ultimately go public.
Click through to see our list of the most shameless celebrity cads.
The "Monster Garage" star allegedly cheated on wife Sandra Bullock with fetish model Michelle "Bombshell" McGee.
The golf great caused one of the biggest cheating scandals in recent history last year when he was linked to more than a dozen women.
Tiger, who is the father of two young children with wife Elin Nordegren, has admitted to and apologized for transgressions in his marriage, but new sex partners (and sexts!) are constantly coming out of the woodwork.
The talk show host's affairs with staffers were revealed when Dave was blackmailed by a former CBS producer last year.
For more pics of David Letterman, visit x17online.com.
The actor/director left his wife of 28 years, Robyn, (mother of his seven kids) for Russian pop star Oksana Grigorieva in last spring. Oksana gave birth to his child in October.
According to his sometime girlfriend Hailey Glassman, Jon was with her while still married to the mother of his eight children, Kate Gosselin.
The reality TV dad was also linked to several other women, including a babysitter and a magazine reporter, before his divorce was finalized last summer.
Last fall, a stripper came forward to allege an affair with Fergie's hubby, who she met at an Atlanta strip club. Fergie has stood by him and the couple is going strong.
Eddie left his wife Brandi Glanville for LeAnn Rimes after the two did a TV movie together. LeAnn also left her husband Dean.
Scandal rocked former super model Christie Brinkley's life when her then-husband Peter Cook was alleged to have cheated on her with a teenager!
Peter filmed a sex tape with Diana Bianchi, who was just 18 at the time. Christie left him and their divorce played out bitterly in front of the press.
In 2003, basketball star Bryant was accused of raping a 19-year-old hotel employee.
Kobe admitted to adultery but denied any type of sexual or physical assault. The two parties later settled for an undisclosed amount. Bryant apologized to his wife and the woman involved.
The basketball great recovered quickly from the scandal, regaining several of his endorsements and signing a 7-year, $136M contract just one year after the allegations.
He and his wife are still together.
The "Californication" star entered rehab for sex addiction in 2008. Amid rumors of an affair, he announced his separation from wife Tea Leoni.
The couple are now back together and sexual addiction has become a well-known term.
British actor Jude apologized for cheating on fiancee Sienna Miller with his children's nanny, Daisy Wright after she went public with a story about their affairs.
Jude and Sienna split (and she dated married man Balthazar Getty) but they're currently both in NYC working on Broadway... and have been spotted back together!
After Jude Law cheated on Sienna Miller, Balthazar cheated on his wife Rosetta Millington with Sienna. See how that works? Numerous photos of the alleged adulterers seemed to confirm the affair that left heads shaking everywhere.
Mary Louise Parker was seven months pregnant when Billy left her for his "Stage Beauty" costar Claire Danes. (Claire, in turn, cheated on Billy with Hugh Dancy, who is now her husband.)
Parker is now a happy single mom who stars in the hit show "Weeds."
Dean and Tori Spelling were both married when they met on the set of a Lifetime movie. Like LeAnn and Eddie, sparks flew between the pair and ultimately, Dean left his wife of 13 years, Mary Jo Eustace, for Tori!
At the time, Dean and Mary Jo had just adopted a baby daughter, who Dean later relinquished to his ex, in addition to their son together.
Now parents to two children, Tori and Dean have their family life documented for reality TV.
The Oscar winner left her musician husband after reports surfaced that he was a sex addict (and thus, a cheater).
She's now happily involved with Calvin Klein model Gabriel Aubry, with whom she has a daughter.
The British actor famously cheated on sizzling star Elizabeth Hurley in 1995 with prostitute Divine Brown.
Despite his wandering eye, Hurley stayed with him until the two finally split after 13 years together. Miraculously, the two are still close pals.
Arnold Schwarzenegger joins our list of leading men with wandering eyes.