The Simpson-Wentz' Park Playdate

Ashlee Simpson-Wentz and Pete Wentz braved the Los Angeles heat wave on Sunday (September 26) and took son Bronx Mowgli on a park outing.

Bronx is growing up so fast – hard to believe that the tot will turn 2 in November. Wonder what the birthday party theme will be? Last year Ashlee and Pete went all out with a Spongebob Squarepants extravaganza.

Not that the busy couple have time to think about birthday party plans just yet. Ashlee is said to be busy recording her fourth studio album, and Pete is traveling extensively on business – one of his duties includes promoting his Clandestine clothing line.