Credit: Daniel Boczarski/Getty Images

And baby makes three!

Pete Wentz and his girlfriend, model Meagan Camper, are expecting a baby, the Fall Out Boy bassist announced on Instagram.

"We're super excited to announce we're expecting a baby," Wentz, 34, wrote, alongside a photo of himself cuddling with his girlfriend.

This is the first baby for the couple of three years, though they have been serious for quite some time.

"We talk about [getting married] a lot. I feel really lucky," he told Wendy Williams in January. "It's really interesting when you're in a relationship with somebody who's truly your best friend. I talk to her about everything."

Wentz has one child, son Bronx, with his ex-wife, Ashlee Simpson.

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