Pete Wentz and Meagan Camper welcome second child, a girl

She’s here and already surrounded by love!

Pete Wentzand his girlfriend, Meagan Camper, welcomed their second child, girl, the Fall Out Boy rocker announced in an Instagram post on Sunday, May 13.

“So excited to introduce Marvel Jane Wentz,” the 38-year-old captioned a photo that showed Camper, 29, with their baby girl on her chest as she lay in a hospital bed, surrounded by Wentz, their son, Saint, 3, and 9-year-old Bronx, who the guitarist shares with ex-wife Ashlee Simpson.

“Feeling so grateful that she’s here… annnnd she’s already ready to takeover the world,” he continued. “Happy Mother’s Day @meagancamper and all the moms out there. We

you.”

Wentz and the model began dating following his divorce from Simpson, 33, in 2011. She has also since moved on and is married to Diana Ross‘ son, Evan Ross. They are the parents of daughter Jagger, 2.

The musician and Camper announced their pregnancy with an Instagram pic on January 2 that showed Saint and Bronx holding a box wrapped with pink paper and a bow.

” Happy New Year! We’re kicking the year off with news of the best gift yet,” Wentz wrote adding a girl emoji. “Coming to our family in 2018… love Pete, Meagan, Bronx and Saint.”

Back in 2014, Wentz revealed on On Air With Ryan Seacrest that he’d helped deliver son Saint. “It was crazy. The doctor was like, ‘You’re going to help, you’re going to deliver this baby,'” he recalled. “And I was like, ‘Oh my god, I’m not ready.'”

But after putting on his scrubs and worrying that he was going to drop the baby — because “newborn babies are super slippery” — he was handled the situation perfectly.

“It was like this amazing, beautiful thing,” he said.