sunglasses jeans Pete Wentz bronx ashlee simpson fall out boy

Pete Wentz and his adorable son Bronx Mowgli shared father-son drinks -- and matching neon-green shoes -- as they strolled through Beverly Hills, on Tuesday.

The Fall Out Boy singer escorted his two-year-old son, with soon-to-be ex-wife Ashlee Simpson, to a local Starbucks where daddy got some fuel for their fun little outing.

At one point the busy dad gave little Bronx a lift when he got too tired to walk on his own. Adorbs!