Twilight star Kristen Stewart has responded to rumours that she is dating Alicia Cargile, and has turned into a lesbian.

According to a print report from Star Magazine, the 24-year-old has been dating Cargile, a Los Angeles-based visual effects producer since last spring.

"Love is love to Kristen. She's really happy with Alicia," a source told the magazine about Stewart, according to Sugarscape.

In March, Pop Dust reported that on 23 February, Stewart was seen "dirty dancing" with Cargile while partying at Korakia Pensione hotel in Palm Springs, California.

"She put her arms around Kristen's neck and Kristen put her hands on her waist," an alleged eyewitness told the gossip website. "After about 30 seconds, Kristen started laughing, kissed Alicia right on the lips then rested her head on Alicia's chest and hugged her tight. It was totally hot."

According to a report by Showbiz Spy, Stewart is "thoroughly amused" by the reports about her sexuality.

"Kristen couldn't stop laughing when she saw the reports she's in a lesbian relationship with Alicia," a source said.

"She said, 'If I was a lesbian, I wouldn't hide it – it's nothing to be ashamed of! Alicia and I are just good friends! That's all.' Kristen and Alicia have been having a good giggle."

Stewart made headlines in the summer of 2012 when she was caught cheating on boyfriend Robert Pattinson with her Snow White and the Huntsman director Rupert Sanders, who was then still married to British model Liberty Ross.

Stewart's liaison with the 43-year-old was uncovered when pictures of the father-of-two kissing the actress in public were published in US Weekly.

Following the public meltdown, Robert Pattinson ended his relationship with Stewart.