The 19-year-old singer singer, who is engaged to actor Liam Hemsworth, tweeted a picture of the actress and said she is a huge fan of her style, reported Showbiz spy.
"Kristen Stewart keeps getting better! Ughhh this look is so good! girlcrush (sic)," Cyrus posted.
Cyrus has recently hired 20-year-old adult film actress Jessie Andrews to appear in a music video for her new song Decisions, which she recorded with Jessie's ex, Israeli DJ Borgore.
There were reports that she has a crush on a female porn star.
"Miley has had a thing for Jessie for a long time from watching her porn movies, so she was adamant about finding a way to work with her," a source said.