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Looks like a girl for Kendra Wilkinson.

A rep for the reality star and former Playboy model confirmed to ABC News that Wilkinson, 28, is expecting a girl with husband Hank Baskett, 31. It will be the second child for the couple, who have been married since 2009. They are already parents to son Hank Baskett IV, who celebrated his fourth birthday on Wednesday.

Kendra Wilkinson Confirms She's Pregnant

Wilkinson posted a photo of the soon-to-be big brother perched on a tree branch and wrote, "Happy 4th birthday to my sweet angel Hank. Best gift to our lives. My boo boo!"

The "Kendra on Top" star revealed in October via Twitter that she was expecting her second child. While trying to conceive, she told ABC News in September that her son was ready to be a big brother.

Kendra Wilkinson on Baby Number 2: 'We're Trying, We're Ready'

"He's that mature to be able to look and see his friends having little siblings and he's able to look up at me and be, 'Momma, I want a baby brother,'" she said. "He doesn't know where it comes from, so he thinks we just go buy one from the store, so I tell him, 'Just be patient, you'll get one soon.'"

In addition to preparing for her baby girl, Wilkinson is also working on a children's book to be released sometime in the future.