United Kingdom, Feb. 22 -- Sharon Horgan has admitted filming a sex scene with Michael Sheen in 'Best Interests' was "so awkward".

The 54-year-old Irish writer and performer, known for her work on 'Bad Sisters' and 'Catastrophe', said she has filmed numerous intimate scenes before, often to the amusement of her daughters - but it was her latest that caused her most embarrassment.

She told Page Six in a chat about the raunchy scene in drama 'Best Interests': "(My daughters) take the p*** out of me because they're like, 'Why do you have to write yourself having a sex scene in the first five minutes of that show?'"

She added about her newest raunchy sheen with Michael, which happens in a a small train car bathroom: "I didn't know why it w...