Avril Lavigne Slips Into Union Jack Bikini in Cabo San Lucas (PHOTOS)

As a proud Canadian, Avril Lavigne is showing her love for her homeland’s British roots.  Sporting a Union Jack bikini and denim short shorts, the singer was spotted frolicking with gal pals on the sandy beaches of Cao San Lucas, Mexico this Thursday.  However, her skimpy suit isn’t the only thing that caught onlooker’s gaze.