Ashlee Simpson and her boyfriend Vincent Piazza took Bronx for a walk at the Tree People park in Los Angeles, Calif. on Wednesday (January 18). Bronx, 3, wore A Tribe Called Quest t-shirt and cut off jean shorts. Soon the curly-haired cutie will have a cousin to play with! His aunt Jessica Simpson is due in the Spring.

As for Ashlee, it looks like her love life is going strong. The couple have been dating since last June and made their public appearance together at the season premiere of his HBO show Boardwalk Empire. Piazza has been coy on talking about his relationship with Ashlee. He has said, "Saying [how I feel] publicly would only diminish it between the two of us...She's a wonderful girl."