While Avril Lavigne and Sum 41’s Deryck Whibley may not have worked out, the “Sk8er Boy” singer looks to have picked up her dating life with Wilmer Valderrama.

“They have been friends since working together on Fast Food Nation in 2005, but things heated up last month,” a source explained. “One of their first dates was Oct. 29 at Nobu in West Hollywood.”

And, according to eyewitnesses, the pair made things known at LA’s club Wonderland last Saturday.

“She had her hand on his knee and they were whispering in each other’s ear, laughing,” says a source. “They even closed the club, sneaking out just after 2.”