Gerard Butler Jessica Biel datingClad in their chic leather jackets, sunglasses, helmets and love for the open road, Gerard Butler and Jessica Biel look every bit the part of a Harley Davidson commercial. Biel, 29, was latched onto Butler, 41, as the pair caught some wind along California's Pacific Coast Highway, according to Us Magazine.

The duo became further acquainted while filming their forthcoming romantic comedy, 'Playing the Field,' which happened to occur in the midst of Biel's breakup with longtime beau, Justin Timberlake. So is this fiercely attractive twosome simply co-stars or is there a budding relationship on the horizon?

Butler "was really flirting with her" during a cast and crew party, a source told Us. But Biel "only wants to be friends." This isn't our first time at the Tinseltown rodeo, we know how the Hollywood dating games goes. From co-stars to friends to whirlwind romance, we'll hold our breath.