Chrissy Teigen is a glowing goddess!

Donning a glitzy silver dress, deep red nails and a punchy pink pout, the 30-year-old model stuns on the cover of Cosmopolitan's December issue. In her accompanying interview with the magazine, Teigen gets candid on the type of girls her husband, John Legend, used to date, and reveals the story of why they once almost called it quits.

WATCH: John Legend Reveals the Moment He Fell in Love With Chrissy Teigen

"I didn't know it, but John used to be a notorious modelizer," Teigen, who gave birth to her and Legend's first child, daughter Luna, in April, confesses. "To me, he was the sweetest teddy bear."

"What's funny is that I get along with everyone he's ever been with," she adds. "I end up really liking them. After I see them, I'll tell him, 'Oh, I was on-set with your ex today -- it was fun!' It was before me, so it's fine."

Back when she and Legend first started dating, however, everything wasn't "fine" when the 37-year-old "All of Me" singer was feeling under the weather.

"Early on in the relationship, I was on tour with him and he'd gotten sick," the brunette beauty explains. "He was feeling really bummed and stressed out. He was like, 'I can't be in a relationship right now.'"

"That lasted for one day. Literally, a day," she continues. "I knew it came from a place other than us not working. I always joke, 'Remember when you tried to break up with me?' He's like, 'Yes, sorry. Big mistake.'"

WATCH: Chrissy Teigen Dresses Baby Luna Up for Halloween -- See All the Cute Looks!

Now, the two simply cannot get enough of each other, or their baby girl, Luna. For Halloween, the new parents adorably dressed up their little bundle of joy in a handful of costumes. Naturally, Teigen took to Instagram to show off all the looks.

See Luna as Alice in Wonderland, a banana, hula dancer and more in the video below!