Sienna Miller and new boyfriend Balthazar Getty have been spending time together on the Amalfi Coast this week after deciding to go public with their relationship.

Topless Sienna Miller Kissing new boyfriend Balthazar Getty on the Amalfi Coast

A source close to Miller told The Mirror: "Sienna is totally besotted with Balthazar. Their relationship has gone from strength to strength over the past month and Sienna finds him utterly irresistible. Balthazar arranged for the trip to one of the most beautiful and exclusive parts of the Med.

"Sienna is so relaxed in his company and has been telling her inner circle she's never been so in love. It's early days - but she looks completely smitten."

The actress was first linked to billionaire oil heir Balthazar at the end of last month, but Getty was quick to deny rumors of an affair.

Getty's wife Rosetta is said to be devastated by their romance.