London, Aug 21 - Teen star Miley Cyrus has fuelled speculation that she is dating Australian actor Liam Hemsworth after she was spotted kissing him at an airport.

The 'Hannah Montana' actress has repeatedly denied that she is romancing Hemsworth, who plays her love interest in upcoming movie 'The Last Song', contactmusic.com reports.

But rumours about their relationship are heating up after the 16-year-old was seen having an intimate moment with Hemsworth after dropping him off at Nashville International Airport in Tennessee Wednesday.