Actor Justin Long spared his blushes with a jockstrap when he filmed a scene featuring Britney Spears stripping for him.
The two stars play lovers in the movie What Friends Are For.
But modest Justin admits to covering up, while Britney also kept her underwear on.
Justin said: "I was in boxer shorts, sitting on a bed with Britney Spears in her bra and panties as she did a striptease two inches in front of me.
"So I wore a jockstrap. I even entertained the notion of wearing two - but I figured one, really tight, would do the trick."