It might be getting colder outside, but Karlie Kloss is staying red hot.

In a photo posted to her husband Joshua Kushner’s Instagram account, the 28-year-old supermodel showed off her baby bump in a bright red bikini.

Striking a pose in the side-buttoned style, Kloss accessorized with hoop earrings and sunglasses.

Followers were quick to send their congratulations, with famous friends Alex Rodriguez and Sophia Bush both dropping heart emojis in the comments.

Kloss confirmed her pregnancy earlier this month, sharing an Instagram video that offered fans a first look at her bump.

Kloss and Kushner, 35, married in 2018 after Kloss converted to Judaism.  This will be the couple’s first child.

The pair celebrated their second wedding anniversary in October with sweet Instagram posts.  Kushner wrote, “Happy anniversary karlie. i pinch myself every day,” while Karlie shared, “I fall more in love with you every day.”

Talk of the catwalker’s pregnancy started at the end of October, when sources told People that she was “overjoyed” to be expecting and would be “the most amazing mother.”