Kaley Cuoco experienced her first real sex scene with The Flight Attendant co-star Michiel Huisman (Picture: HBO)

Kaley Cuoco has revealed she had to learn how to film a ‘true’ sex scene in her new show, The Flight Attendant.

The Big Bang Theory star previously featured in slightly intimate scenes during her time as Penny on the hit sitcom, but the actress has admitted she had to step out of her comfort zone for her new HBO Max series.