Is popstar Harry Styles dating 33-year-old Kimberly Stewart? The heart-throb singer of One Direction hearth throb was photographed Thursday at dinner in Los Angeles with 33-year-old Kimberley Stewart. Also eating with them were Rod Stewart, Penny Lancaster, Sean Stewart, and Adrienne Maloof. It's already been rumored he likes cougars, but insiders deny the pair are hooking up for anything but PR, saying Styles is not dating the 33-year-old. "Kimberly and Harry are just friends," a source said. "Rod (Stewart) really likes Harry, so it's good PR for him. There's nothing going on. It's just PR fun."

People Magazine first reported that Harry and Kimberly dined with Stewart's parents at Dan Tana's and looked relaxed and happy. "Kim and Harry sat next to one another," someone who observed the duo said to E! News. "He had his arm around her."

The UK-born Styles, 19, is on a break from touring with his boy band, One Direction, so he has more time to spend wooing the ladies, apparently.  A few weeks ago, a different source said the pair really are dating. ""They were introduced by a mutual friend who set them up...Kim is very strong willed, she goes for what she wants and Harry appreciates that. It is a very new thing and we'll see where it goes," the insider said.

Styles has been rumored to be linked to other older ladies before, like Caroline Flack and Lucy Horobin, who are both thirty-somethings. But then, he also hooked up with Taylor Swift, who is 23- still his senior, but just barely.

Ages at the triple date were all across the board: Rod's 68; Penny is 42, Sean is 32, and Adrienne is 52. So...who knows?

Sources close to the pair deny the two are together. Perhaps we'll have to wait until someone is caught kissing-or Taylor writes an angry song about it.