Pete Wentz hat tattoo girlfriend playground ashlee simpson fall out boy
Pete Wentz hat tattoo girlfriend playground ashlee simpson fall out boy

Ashlee, who?

Pete Wentz stepped out with his new girlfriend, model Meagan Camper, just days after his ex Ashlee Simpson made her first public appearance with her beau, Broadway Empire's Vincent Piazza.

The former Fall Out Boy bassist held hands with his mystery GF during a supermarket run before heading off to a Toluca Lake playground Thursday afternoon to spend some quality time with Bronx, Pete's 2 1/2-year-old son with Ashlee.

This is the first time Pete's been spotted with a love interest since his split from Ashlee earlier this year. Bronx looked like he was having a great time hanging in the sandbox, so he's clearly met her before!

See more pics of Pete with the new GF and the always adorable Bronx below.