It's the question that is usually off-limits, but it seems celebrities including Gwyneth Paltrow, Jane Fonda, Sarah Silverman and Zoe Saldana have no problem discussing their bedroom secrets.
These leading ladies are just some of the stars who are opening up about their feelings, fears, love life and relationships for the new TV series The Conversation With Amanda de Cadenet.
Although some celebrities reacted shyly to being asked what their favourite sexual position was, others weren't so secretive.
Gwyneth, who is married to Coldplay singer Chris Martin, first laughed off the question but then said, "I'm down with all of them”.
At 74, actress Jane Fonda had no problem sharing her secrets.
"While I am quite flexible and I can kneel, it's not quite as comfortable for me as it used to be before I had a fake knee... [I like to be] either lying down or sitting up on a couch with him coming on to me, no pun intended," she said.
Comedian Sarah Silverman and actress Zoe Saldana were also very forthcoming when answering the question.
"I do enjoy a good sound missionary-ing... and I like to be manhandled," Sarah said.
Zoe, who has been linked to Bradley cooper, agreed.
"I like missionary and I like being on my knees too. And I love being on top... I love doggy-style or standing up."
The show, which airs in the US on the Lifetime channel, is executive produced by Demi Moore.
Watch a preview of The Conversation, which also includes celebrities Lady GaGa and Eva Longoria, in the video player above.