Teen star Miley Cyrus has sparked rumors she's in the midst of a real-life romance with her new Hannah Montana co-star Lucas Till after she handpicked him for the role of her on screen love interest.

The 15-year-old actress stars alongside Till in the pair's upcoming big screen follow-up to her alter-ego franchise, and sources say Cyrus' affection for the 17-year-old actor have translated into an off-screen fling.

A source says, "The moment Miley saw Lucas' photo, she knew he was perfect to play her on-screen love. Once they began shooting, she totally fell for him.

"It was as if she decided she wanted him and would have him - like Lucas would have no choice in the matter... She is always cuddling up to him and kissing him on the cheek."