Liam Hemsworth isn't amused with Miley Cyrus' over-the-top performance from the MTV VMAs on Aug.25 and now an explosive new report claims he's totally 'embarrassed' by her twerking, sexual gestures and dirty dancing, HollywoodLife.com reports.

Although Liam "really does care" about Miley, according to a report on RadarOnline.com, he's upset by what happened at the VMAs, HollywoodLife.com also reports.

"Her racy new look and attitude isn't exactly what he signed up for," a friend told the website. "Her VMA performance absolutely mortified him and he couldn't be more embarrassed. He doesn't really see anything sexy about what she did on stage."

Selena Gomez had her mouth wide open and her tongue hanging out at the premiere of "Getaway" in Los Angeles on Monday, leaving fans wondering if she was mocking Miley Cyrus and the attention she's been receiving following her VMA performance.

The former Hannah Montana star's suggestive, crotch-centric dance moves and vulgar gestures with a foam finger have been constantly scrutinized since she and Robin Thicke shared the Barclay's Center stage in Brooklyn on Sunday, Aug. 25, E! Online writes.

Selena, 21, has never presented herself publicly in quite as provocative of a way, but she didn't seem to be bothered by the raunchy performance, E! Online also writes.