(Cover) - EN Showbiz - Jessica Biel and Gerard Butler have sparked romance rumours again after they were spotted enjoying a romantic motorbike ride.

The pair star alongside each other in upcoming movie Playing The Field, in which Gerard is an ageing athlete who tries to reconnect with his son by coaching his soccer team. However, he becomes distracted by the mothers of his son's teammates, who are all very attractive.

The actors are thought to have grown close on set and dismissed claims they're dating earlier this year.

However, romance rumours have resurfaced after the pair were seen riding down Pacific Coast Highway on a Harley Davidson motorcycle.

Gerard, 41, was in the driving seat, wearing blue jeans, a brown jacket, sunglasses and riding gloves. Jessica, 29, was nestled behind also wearing shades, which she teamed with a dark coat and jeans. The duo seemed happy and relaxed together, with Gerard seen laughing before he thrust the bike into gear and started their journey.

In March, a source on the Playing The Field insisted the pair were just good friends and hadn't taken things to the next level.

"They have never had dinner alone. They are always in a crew of people on the film," the insider explained.

Jessica has been single since splitting from long-term boyfriend Justin Timberlake earlier this year, while Gerard was linked to Jennifer Aniston last year. (C) Cover Media