Jenna Dewan-Tatum has posed completely naked for Allure magazine.

The 'Step Up' actress was amused by the instructions being fired at her on the set of her raunchy nude photoshoot, as she struggled to cover her modesty while lying half-submerged in the ocean.

She joked in the publication's May issue: ''It's really funny, the direction you get when you're doing this photo shoot. It's like, 'Show more side boob. Oh, can you relax your fingers while you're covering your nipple? And don't show the cooch.' These are words I will never hear again.''

Jenna didn't have any qualms about stripping off for the sexy shoot since her husband Channing Tatum, with whom she has 11-month-old daughter Everly, was fully on board with the idea, having got naked on camera for male stripper drama 'Magic Mike' - which was loosely based on his own exploits - in 2012.

She added: ''Chan was really on board with it - he knows I'm very comfortable in my own skin.''

And the 'Witches of East End' beauty admits she was completely comfortable with being in the buff because she tends to not wear much clothing around her own house.

Quizzed about how often she gets naked, she laughed: ''I'm on the 'a lot' side of the scale ... I've always been free-spirited, and it was hard to keep clothes on me as a kid.''

The 33-year-old brunette was joined by 'Veronica Mars' star Kristen Bell, British actress Minnie Driver and 'The Fresh Prince of Bel-Air' star Nia Long in the magazine's highly-anticipated 'Nudes' feature, which put the spotlight on body-confident mothers.

Kristen said: ''I talk a big game about being comfortable no matter my size. I wanted to put my money where my mouth was.''