Kristen Stewart celebrates birthday with Robert Pattinson

Kristen Stewart brings in her 23rd birthday with her on and off boyfriend Robert Pattinson. The couple was seen enjoying dinner on Tuesday at Malo, a Mexican restaurant in Los Angeles, with 40 other friends, including Hollywood star Ashley Benson to mark Stewart's 23rd birthday. After dinner, the couple stopped at No Vacancy at Hotel Jupiter, where Hanson had album releasing party.

"They weren't overly affectionate or anything, but at points they were standing together as they talked to friends," a source told E! News. Perez Hilton, however, reported that the couple are "0 BACK ON."

On Kristen Stewart’s birthday, Pattinson gifted his ladylove unique fountain pen. It is not simply a pen. It is a limited-edition fountain pen with a barrel identical to the dashboard in the earliest Bentley automobile and one of only 40 in the world.The estimated price of the gift is 30,000 British pounds, which converts to roughly $46,000.

Kristen Stewart has a hobby of pen collection. "Rob decided to go big for her birthday this year," a source said.

After a brief separation, Kristen and Pattinson are back together and bonded strongly like never before. They also celebrated Easter together and the couple seems very much in love like never before.