AVRIL Lavigne is reportedly dating Brody Jenner. The Boi singer - who filed for divorce from rocker husband Deryck Whibley last October, a month after they separated - has been enjoying a low-key romance with the 26-year-old reality TV star for several weeks. Theyre hooking up but theyre keeping it low-key, a source told E News. SS Despite trying to keep their romance out of the public eye, the couple recently enjoyed a dinner at Los Angeles restaurant Koi before heading to nearby nightspot Voyeur, where they amazed onlookers with their flirty behavior. You can tell theyre into each other and both like to have a good time, said the source. Theyre cute together. Since splitting from Deryck - whom she was married to for three years - Avril, 25, has been romantically linked with actor Wilmer Valderrama and oil heir Brandon Davis, but pals insisted she was just friends with both men. Brody was most recently dating Playboy playmate Jayde Nicole, but they split in December.