Chrissy Teigen strips down for cover of 'Women's Health UK'

Chrissy Teigen has never been shy about taking it off.

The 29-year-old supermodel goes fully nude for the cover of Women's Health UK's Naked Issue, wearing a big smile with her hands strategically placed over her breasts. But while Chrissy of course looks fantastic sans clothes, the always candid star admits her slim body takes work.