1. Rachael Ray & John Cusimano
This pair hasn't officially confirmed their open relationship, but Cusimano is open about taking other women out on dates. He's even been seen going to a swingers club quite a number of times.
2. Mo'nique & Sidney Hicks
The two have admitted to being in an open relationship for quite a time. Mo'Nique believes that monogamy isn't a realistic expectation and has publicly said that the open marriage was her idea.
3. Pink & Carey Hart
Pink and Carey Hart once had an unclear and uncomfortable open-door policy in the bedroom. But their open relationship seems to have led to their two breakups in 2003 and 2008. Now the couple is keeping their relationship just between the two of them.
4. Kim Kardashian and Nick Cannon
Sources say the couple had an agreement before their marriage that Kardashian could have a dream house and a sugar daddy, but she had to accept Nick's side chicks, while she herself couldn't have any side action.
5. Justin Timberlake & Jessica Biel
The couple had been in open relationships for a while. However, when Biel was eventually ready to settle down, they decided to keep it just between the two of them.
6. Will Smith & Jada Pinkett Smith
Sources reveal that Will gives Jada permission to be with another man if she needs to. Jada also said that she's not Will's watcher and that he can do whatever he wants.
7. Rita Wilson and Tom Hanks
A video released by Rita Wilson for her song, "Forgiving Me, Forgiving You" led listeners to wonder whether the couple had cheated on each other during their nearly 30 years of marriage. The lyrics do describe her real-life relationship problems, hinting at infidelity. But it also reveals that the couple sticktogether through it all.
8. Megan Fox & Brian Austin Green
The couple have allegedly agreed on an open relationship. Sources reveal however that it's a bit of a one-way agreement. Whilst Green is not allowed to touch other women, Fox can touch other men.
9. Jay Z & Beyoncé
It seems that both Bey and Jay like to bring others into the bedroom during their downtime. But Beyoncé isn't okay with the media snapping shots of other girls on her husband's arm.
10. Brad Pitt & Angelina Jolie
Before this power couple's breakup, Jolie spoke out about fidelity, "I doubt that fidelity is absolutely essential for a relationship... Neither Brad nor I have ever claimed that living together means to be chained together. We make sure that we never restrict each other."
11. David Beckham & Victoria Beckham
This couple is often portrayed as the ultimate in celebrity couples, but there have been rumors about a possible open relationship. Beckham was spotted with Irma Nici several times in 2007, and he was caught cheating again in 2010. Maybe Victoria had agreed to an open relationship.
12. Zac Efron & Vanessa Hudgens
The couple was once in an open relationship because Efron had refused to settle down until he was 40. But it seemingly didn't work for the pair, and as a result, they split. Hudgens admitted that she had a hard time with their open marriage and was often jealous.
13. Tilda Swinton & John Byrne
Reportedly, Swinton and Byrne both have partners outside of their marriage, and they have agreed that this is the best situation for their kids.
14. T-Pain & Amber Najm
The couple have been married since 2003, and agreed to keep their relationship open as long as both of them are comfortable.
15. Julia Louis-Dreyfus & Brad Hall
This couple's open relationship has been rumored for over 30 years. Interestingly, they have never been open about their relationship status nor denied the rumors.
16. Demi Moore & Ashton Kutcher
This former couple was married for eight years, and the entire time, they enjoyed an open relationship. Moore was okay with sexual freedom, but lying or hiding relationships were not allowed. Kutcher had a little bit of his own fun without her.
17. Chris Martin & Gwyneth Paltrow
This couple also enjoyed an open relationship, though their ten years of marriage finally came to an end. Paltrow believes that they are both adults and simply make their own choices.
18. Dolly Parton and Carl Dean
This country icon has been married for over 50 years, and she owes her long and strong marriage to their open relationship. Dolly said, "If we cheat we don't know it, so if we do cheat, it's very good for both us."
19. John F. Kennedy & Jacqueline Kennedy
It's one of the worst-kept secrets that President Kennedy and his wife were in an open relationship. Rumor has it that Kennedy had an affair with Hollywood star Marilyn Monroe. Jackie was reportedly aware of his affairs and was okay with his lifestyle.
20. Kobe Bryant & Vanessa Bryant
The NBA star Kobe Bryant married dancer Vanessa Laine in 2001. After two years of marriage, Bryant was caught with a worker at a Colorado hotel. Laine accused him of rape, but Bryant apologized to her with a $4 million canary yellow diamond ring. Nowadays, Laine doesn't care about his rampant cheating, but still feels embarrassed when catching him in the act in a very public way.