Jude Law Sienna Miller Wedding Summer 2010

Cat’s out the bag for Jude and Sienna: The on-again-off-again lovebirds are reportedly planning a secret wedding set for this summer.

The pair have been engaged before but split in 2006, after Jude had an affair with his children’s nanny. He also fathered a daughter born last year following a one-night stand with Florida model Samantha Burke.

All water under the bridge for Sienna, who is in the middle of planning Bohemian-style nups in the couple’s native Britain and a second wedding in their adopted home of New York sometime in the next few months.

A source told The Mail on Sunday this week: “They don’t want to jinx things by talking about it, but they have told their nearest and dearest that they would like to get married in the summer. Sienna is also saying that she has some other really exciting news, but she is not saying anything to anyone at the moment.”

Keep your eye on him, girl!