Jennifer Aniston and Gerard Butler at the Golden Globe Awards in Los Angeles, Jan. 17, 2010. (WENN.COM)

Jennifer Aniston has further fuelled rumours she is dating handsome Scot Gerard Butler - after she invited him to join her early 41st birthday celebrations in Mexico.

The former Friends beauty jetted off to the sun-soaked resort of Los Cabos last week with pals Courteney Cox and Sheryl Crow to have a week of fun leading up to her birthday on Wednesday.

And one guest will restart the rumour mill - her The Bounty co-star Butler, whom she was reportedly dating at the end of last year, reports RadarOnline.com.

The pair dismissed the reports, insisting they found them hilarious, but were spotted enjoying each other's company throughout the Golden Globes in Los Angeles last month (Jan10)