Recently superstar James McAvoy has revealed his sex scenes with Keira Knightley were a “sweaty and uncomfortable nightmare”.

The 28 year old actor felt so uncomfortable while filming the raunchy scenes for Atonement he kept apologizing to Keira when the cameras stopped rolling. James said: “It’s always a nightmare filming sex scenes, isn’t it? It’s never easy and it’s always a little bit sweaty and uncomfortable.

“When they call action, if you feel the lady’s breast, it’s your decision to feel the lady’s breast. It’s like, this is wrong. You have no parameters. “We carried on and about 10 seconds later we just said very sheepishly, ‘Sorry about that’.”

The Last King of Scotland star who Keira described as “the best kisser ever” was pleased director Joe Wright ordered them around during the passionate scene.