michelle460.jpg The funny man looks like he's becoming a family man!

Jason Segel, girlfriend Michelle Williams and her daughter Matilda had a relaxing afternoon checking out all the wildlife at the Bronx Zoo today, and they looked like quite the happy trio!

The Oscar-nominated actress and the Forgetting Sarah Marshall star went public with their romance in March, and it appears the relationship is moving at lightning speed! The 32-year-old actor has stepped in as a father figure to the blonde beauty's 6-year-old with the late Heath Ledger, and it appears his fatherly instinct makes his girlfriend completely smitten!

Not only is Mr. Segel doing a wonderful job with daddy duty, he's also already meeting the folks! Along for the zoo day were the My Week With Marilyn star's parents, Larry and Carla Williams.

We hear wedding bells!