HELENA CHRISTENSEN has no problem with naked shoots because she's been doing them for 20 years.
The Danish supermodel has stripped completely nude - bar her new trainers - in a shoot for Reebok.
Sportswear adverts aren't usually this naughty but when Helena signs up for a project her directors can afford to be XXX-tra creative.
Helena said: "When you're doing nude, there are moments of feeling slightly intimidated or self-conscious about it.
"But I've done this for 20 years. If I thought too much about it, I probably would not be working."