Sienna Miller and Rhys IfansSienna Miller and Rhys Ifans‘ “just friends” claims have been doubted yet again after they were spotted sharing a kiss while walking Sienna’s dogs in London at the weekend.

The couple were spotted leaving Sienna’s Notting Hill house together with the hounds on Saturday and walked hand-in-hand around West London before stopping for a kiss.

An onlooker told the Sun: “There’s no way they are just mates. They looked like a couple very much in love.”

“They were holding hands as they walked the dogs and then stopped to share a lingering kiss. Sienna couldn’t stop smiling.”

The pair were first linked after being spotted together in Ibiza over the summer then staying together at her house in London on their return but Sienna insisted Rhys was just staying on her sofa until his house boat was repaired. Since then, Rhys was spotted getting swallow tattoo on his wrist - to match the one Sienna already has - and with his hands down her trousers.