Reunited! Denise Richards and Richie Sambora are back on

Nov 2, 2011 at 4:20 p.m. ET

Denise Richards and Bon Jovi guitarist Richie Sambora have reportedly rekindled their relationship.

Denise Richards and Richie Sambora

Reunited and it feels so good? Actress Denise Richards is reportedly back together with Bon Jovi's Richie Sambora. The couple was spotted on Sunday night getting cozy at Tatsuki sushi restaurant in California.

"They are dating again," a source tells RadarOnline. "They were there over an hour and they had the whole place to themselves for the last half hour."

The Wild Thing actress, 40, and Sambora, 52, turned heads in 2006 when they began dating shortly after they divorced their spouses, Charlie Sheen and Heather Locklear. Richards and Locklear were good friends in the past, but had a falling out after Richards was blamed for "stealing" Sambora from Locklear.

"Yes, I got together with Heather's soon-to-be ex-husband, but no, I didn't have an affair with him," Richards said in an interview,  also revealing she and Locklear had their falling out months before. "If Heather and I had been friends at that time, I would never have crossed that line. But we weren't."

Richards and Sambora broke up in 2007, but she wrote in her book, The Real Girl Next Door, that she didn't "regret her relationship with him."

"Richie and I shared an easiness I hadn't before had," she wrote in her book. "I learned hard lessons from our journey together. My heart may have been bruised, but it was pure. Richie is a wonderful man. He came into my life when I needed him and he needed me. We'll always have that bond."

What sparked the couple to rekindle their romance? Sources say things began heating up "a bit ago" and they are "doing great and happy."

"They've always stayed friends, through everything they've gone through. He's had a rough patch, she's had her own stuff, but they're both in a great place right now," the source tells Us Weekly.

Richards has two daughters with ex-husband Sheen, 7-year-old Sam and 6-year-old Lola, and she adopted a baby girl named Eloise this summer.

We have reached out to Richards' rep to comment on these reports, however she has not yet responded.

Photo: WENN