The Montag family is gaining another member: Holly Montag is pregnant!

The 31-year-old former cast member of MTV's 'The Hills' is expecting her first child with husband Richie Wilson, Us Weekly reports. Her reality-star younger sister, Heidi, confirmed the news via a delighted Twitter post:

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In the accompanying photo, Holly is seen cradling her baby bump while posing with her hubby in front of a Christmas tree. It's a perfectly festive pic to share along with the happy news.

Heidi and husband Spencer Pratt will play the roles of real-life aunt and uncle very, very soon. MTV reports that the Holly is due to give birth in May.

Holly and Richie wed last September in Crested Butte, Colo. Congrats to the happy couple!

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