The 17-year-old star, who recently denied that she is engaged to Hemsworth, has been joking to pals about the possibility of changing her name to match her 18-year-old boyfriend's.
"Miley is crazy in love with Liam and keeps joking that Miley Hemsworth sounds so fancy and sophisticated. She says she can't wait to turn 18 this year so she that could do whatever she wants even if it means marrying her boyfriend," said a source.