Article continues below advertisementChrissy Teigen has a surprising secret behind her 12-year marriage to John Legend: she's never farted or pooped in front of him."For all he knows, I have never farted or pooped," the 40-year-old model told E! News at a Netflix event on Tuesday, January 20. "You got to keep the s--- and preserve the sexy in a little bit of ways. I won't say that John necessarily does that all the time, but I make sure that I do."Article continues below advertisementSource: MEGAChrissy Teigen said she never farted or pooped in front of John Legend.