Jennifer Aniston

Brad Pitt has introduced his ex-wife Jennifer Aniston to his baby daughter Shiloh during a secret meeting, according to reports.

The pair--who divorced two years ago--arranged the lunch date last month, while Pitt was promoting Ocean's Thirteen in Los Angeles.

It's unknown if Angelina Jolie was aware of the meeting, but insiders suggest the date didn't take place in private--the actor took Shiloh's nanny and maid as well.

A source tells British magazine Heat, "They met for just over an hour. It was very emotional. Jen held the baby and called her 'adorable. '"

The pair has reportedly stayed in contact since, with a series of e-mail conversations.

The source adds, "They are trying to be adult about the whole thing. Now that they have properly moved on, they can move towards building a friendship."