The Notting Hill star, 40, enjoyed a romantic afternoon with Rod Stewart's notorious party girl daughter Kimberly, 28, hot on the heels of their evening together at Bungalow 8 on Monday night.
So close: Kimberly Stewart with Rhys Ifans in London 24 hours after getting together at Bungalow 8 nightclub
It's the second time Kimberly has been linked with one of Sienna's exes.
She was photographed in a passionate clinch with the Factory Girl star's former fiancé Jude Law in an Essex nightclub just two months ago.
Rhys and Sienna called time on their nine month romance eight weeks ago as the actress' transatlantic romance with married father-of-four Balthazar kicked off
Rhys had previously closed ranks with his friends in London's Primrose Hill set.
He had been seeking support from famous friends including Kate Moss and Davinia Taylor.
Woo me: Kimberly arrives home carrying some fresh flowers..a present from Rhys maybe?