Katy Perry gels with Orlando Bloom's son

It was a family date for Katy Perry as she went out with Orlando Bloom and his son Flynn to a special kid's birthday party.

Sources revealed that Bloom drove the 'Firework' hit-maker and his son to Malibu, where they attended the celebration for Robert Downey Jr.'s son Exton, reports E! Online.

The insiders added that the 31-year-old songstress looked very comfortable with Flynn and they were both smiling and happy.

Meanwhile, eyewitnesses revealed that Perry didn't know as many people as Bloom so she was a little quieter and shy throughout the party.

'The Hobbit: The Desolation of Smaug' star and Perry have not made any official announcement about their relationship yet.