Stefanie Keenan/Getty Images;Ray Tamarra/Getty ImagesAvril Lavigne and Brody Jenner might be Hollywood's hottest new hookup.
Sources tell E! News that 25-year-old Lavigne and the Hills star have been seeing each other quietly over the last couple weeks.
"They're hooking up," an insider said, "but they're keeping it low-key."
Not so low-key that they haven't been seen in public, however. The pair, who both became single late last year, were first spotted at dinner at Koi Feb. 4. According to a restaurant source, the "Sk8ter Boi" warbler and 26-year-old hunk left together in the same car and drove to club Voyeur.
They were last seen out again on Thursday, back at Voyeur, where they partied all night.
"You can tell they're into each other and both like to have a good time," another source says. "They're cute together."
The reality-TV playboy split in December from Playmate Jayde Nicole, and Lavigne filed for divorce from rocker Deryck Whibley last October.
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Avril Lavigne and Brody Jenner aren't the only stars hitting the town. Check out more in our Celebrity Date Night gallery!