Chrissy Teigen Is Nude For GQ Magazine (PHOTO)

Chrissy Teigen is a free spirit who rarely seems to hold anything back.

That's why it comes as no surprise that the 27-year-old model didn't let a little thing like clothing come between her and the camera for her GQ photo shoot.

Teigen posed completely nude for the magazine (save for a pair of Marc Jacobs heels), and was totally game to offer readers some dating advice -- she's engaged to John Legend, so we'd say she knows what she's talking about.

Though it's Teigen's Sports Illustrated bikini photos that made her famous , it's her Twitter account that keeps people talking about her -- and she admits she sometimes wishes she thought before she typed:

"All the time! But not really a regret that I thought it, just that I said it," she told GQ, explaining that the nude photo she shared on Instagram in March is a prime example. "My naked-spray-tan thing comes to mind. What no one knows is that my mom took it! My mom frickin' threw me under the bus!"

For more with Chrissy Teigen, click over to GQ.