'It feels cool, but I didn't realize it was slowly eroding our intimacy...' Find out which stars have had THREESOMES and what it did to their relationships!

Most people would rather that their private life stayed private, especially when it comes to the details of what they get up to in the bedroom and who they have shared their sheets with! But some stars just can't help but share every detail about their intimate activities, including whether they have invited another person into what is usual a two-person activity. These celebrities have all got candid about having threesomes and what it did to their relationships and self-esteem...