The pair were seen dressed down as they shopped around

Cool customers: The pair were seen dressed down as they shopped around

But when asked about marriage and children, she said: 'It’s not going to happen for a long time because Ollie and I are still so young. It’s nice to talk about it, because if you don’t think it’s what you want some day, then maybe you’re in the wrong relationship.'
Benji, who is the twin brother of Nicole Richie's husband Joel Madden, most recently dated Hugh Hefner's ex 'number one girlfriend' Holly Madison.
But they broke up in January after only two months.
He was in a high-profile relationship with Nicole's best friend Paris Hilton for nine months in 2008.
Before that, he was engaged to Australian model Sophie Monk.
Eliza is  yet to have a charting hit in North America, but her high-profile new pairing with the multiplatinum punk will doubtlessly do wonders for her career.