EXCLUSIVE: Kevin Costner Caught Flirting—Without His Wedding Ring!

Kevin Costner, 60, and his eldest daughter Annie sat down for dinner at Shutters on the Beach in Santa Monica on June 4 for a nice dinner, but it turns out the acting legend wanted some extra company from a table of ladies sitting nearby.

An eyewitness tells Star that the handsome actor was flirting up a storm with tables of 30-year-old women, including a "striking blonde with big boobs." What's more, his wedding band seemed to be missing as he surfed from table to table.

"He kept saying he was there to have dinner with his daughter, but he was talking and laughing with several attractive women," says the source. "I was shocked at the way he was acting, because I thought he was married. I looked, but he wasn't wearing a ring." (A rep for the actor denies Star's story.)

Kevin Costner has been married to wife Christine Baumgartner (his second wife) since 2004 and they share three children together—Cayden, 8, Hayes, 6, and Grace, 5.

It was surprising he was handling himself at the restaurant. "He was acting like he was a bachelor," says the source. "He was really touchy-feely and animated."

But the female diners sure didn't mind the attention! "They were so excited with all the attention Kevin was giving them. He even picked up their dessert tab," dishes the insider.

Kevin Costner's first marriage to Cindy Costner, broke up after 16 years amid allegations he had a wandering eye. And he could be headed down the same path with with Christine. "He was openly flirting like it was no big deal," adds the source about Santa Monica dinner. "Everyone was wondering if he was getting a divorce," adds the insider.

Kevin Costner's first marriage to Cindy Costner, broke up after 16 years amid allegations he had a wandering eye. And he could be headed down the same path with with Christine. "He was openly flirting like it was no big deal," adds the source about Santa Monica dinner. "Everyone was wondering if he was getting a divorce," adds the insider.