Sienna Miller has revealed that she and boyfriend Rhys Ifans can't get enough caviar.

Sienna Miller & Rhys Ifans can't get enough caviar

She told Elle: "Our lives revolve around food. We are both totally obsessed. We have this horrible addiction to caviar, which sounds ridiculous but it's true.

"We're junkies. We do the whole works: blinis, chopped eggs, chopped red onion, sour cream... it's total bliss."

However, she admitted that her expensive taste is taking a toll on her bottom, saying: "It wobbles when I walk. Seriously, I have a lardy arse. Some days I look in the mirror and go: 'Yuck.'"

Image WENN