Liam Hemsworth, the younger brother of hunky actor Chris Hemsworth, was spotted shirtless as he enjoys a beach vacation of boogie-boarding with an unnamed male friend in Australia. It cannot be helped to ask the comparison question: Which Hemsworth brother looked hotter while shirtless in the land Down Under?

Liam's arrival in Australia over a week ago for a vacation without Miley Cyrus has sparked up rumors that there is trouble in paradise and the "Hunger Games" actor is taking a break or giving their relationship some space. However, Miley Cyrus' camp denied the rumors.

An anonymous source revealed to E!News that things are still going well between the couple and the 20-year-old Disney star is busy recording her latest music album. Miley even posted on "Twitter" a message to slam the reports about her rocky relationship with fiancé Liam Hemsworth.

"Not discussing anything but my music from now on," Miley wrote on her Twitter account @MileyCyrus on March 6.

Liam Hemsworth was reportedly staying at Byron Bay together with his brother Chris Hemsworth. In February, the "Thor" actor arrived in Australia with his actress wife, Elsa Pataky, and their baby daughter India Rose for a vacation.

Chris Hemsworth was spotted having family time in Santa Monica before attending the 2013 preview of Foxtel's programming and innovation. The past couple of months have been a fun Hemsworth family vacation as well. Chris and Liam hit the Costa Rica beach last month with Elsa, India and Miley Cyrus.

The Australian vacation could be a break for the handsome Hemsworth brothers before getting busy with their film projects for 2013. Aside from "Rush" and "Thor: The Dark World," Chris Hemsworth has reportedly signed up to star in the upcoming thriller with film director Michael Mann.

On the other hand, Liam Hemsworth will reprise his role on the second installment of the "Hunger Games" titled "Catching Fire." The film is scheduled for a November release.

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