sienna millerSienna Miller is reportedly not just moving to Los Angeles to be nearer boyfriend Balthazar Getty - she’s moving in with him.

The pair, who insist they’re just friends, are said to have stayed at Balthazar’s home together for most of June before jetting to Europe - first Prague and later the Italian Riviera, where they were spotted sunbathing topless together and kissing on board a yacht.

A source told the Mirror: “Before they went on holiday Sienna was staying over at Balti’s place all the time. His wife and four children had moved out so they took full advantage.

“Sienna told a few friends that Balti had made some noises about moving in. Then during the holiday their feelings for each other got stronger.

“She doesn’t really want to move into the family home because of all the history with his ex-wife, so they are planning to buy somewhere new. But her friends are worried she’s rushing into it.”

Sienna returned to London alone yesterday to sort out the fall out from her previous relationship with Rhys Ifans.

A second source explained: “Rhys left a load of clothes, books and things at her place but had to wait until she got back to get them. The last thing he wanted to do is see Sienna. Those pics of her on holiday with Getty really stuck the knife in.”

Sienna is said to have dumped Rhys at the start of June but is rumoured to have been seeing Balthazar for around two months. Balthazar’s wife Rosetta took the couple’s four children to Italy when the new relationship went public at the end of last month.