Reserved British actor David Suchet has vowed never to do another sex scene - after one left him red-faced in bed with a boy.

The A PERFECT MURDER star admits his natural timidity hindered his performance under the sheets, and his surprise at finding a young male beside him didn't help matters.

He recalls, "I played a spy in a 1984 movie called THE LITTLE DRUMMER GIRL. I had to get into bed with this young actress and introduce myself while I was on my elbows. I said, 'I'm David Suchet, how are you?'

"It got worse as I did the TV version with a girl and for the film version I had to do a sex scene with a young man!

"It was difficult as I'm not the most extrovert of persons. I haven't wanted to be involved in any sex in my career ever since."