Model Chrissy Teigen rubs K-Cav's belly for luck!

With her due date quickly approaching, Kristin Cavallari is prematurely leaving her post as co-host of E!'s "The Fabulist" in order to prepare for the arrival of baby #2. Yesterday, the former "Hills" star posted the above pic to Instagram of her posing with model Chrissy Teigen backstage, along with an exciting message about her interrupted work schedule.

"@chrissyteigen stops by @thefabulist tonight and rubs the belly for good luck," the glowing fashionista wrote. "AND it's my last episode of the season..missing the last 2 waiting for this baby!"

If ya ask us, it's about time she kicked off her high heels, put up her feet and started binging on bon-bons. Swollen ankles are not a working girl's friend!

K-Cav and her husband, NFL quarterback Jay Cutler, are expecting another boy in May. They are already parents to 20-month-old Camden Jack, who's sure to make a loving big bro.

Photo: Kristin Cavallari’s Instagram