Kristen Bell is a Mommy in the Making

Heroes hottie (and Gossip Girl narrator) star Kristen Bell heads to a Los Angeles cafe with a female friend (step-sister?) and her baby.

Kristen, 27, was seen playing with the baby and helping the mother load the baby into the car. She even held the diaper bag!

Unfortunately, all new episodes of Heroes or Gossip Girl have been exhausted.

The official website for her upcoming movie is now online: Forgetting Sarah Marshall. The comedy romance, which also stars Bill Hader, Jonah Hill and Paul Rudd, is set for an April 18 release.

Synopsis: Devastated Peter (Jason Segel) takes a Hawaii vacation in order to deal with recent break-up with his TV star girlfriend, Sarah (Bell). Little does he know Sarah’s traveling to the same resort as her ex … and she’s bringing along her new boyfriend.