(Cover) - EN Showbiz - Denise Richards and Richie Sambora are reportedly back together.

The couple had dated for about a year in 2006 but they split in 2007.

RadarOnline claims that the 40-year-old actress and the Bon Jovi rocker, 52, are an item again and have been seeing around Los Angeles together.

"They are dating again," a source close to the couple told the site.

Denise and Richie apparently went for a romantic dinner at Tatsuki sushi restaurant in Woodland Hills, California on Sunday night and were very cosy together.

"They were there over an hour and they had the whole place to themselves for the last half hour," an eyewitness said.

They left and walked past a tattoo parlour where Richie jokingly asked Denise, "Should I get one?"

"It is serious but they are trying to keep it low key," the source added about the reunited twosome.

The couple got together at the same time that both their marriages ended hers to actor Charlie Sheen and his to Heather Locklear.

Denise and Heather were reportedly once friends and relationship is said to have caused friction between them.

Denise has two children with Charlie; Sam and Lola and adopted another baby girl earlier this year; Eloise.

Richie has a 14-year-old daughter Ava Elizabeth with Heather. (C) Cover Media