While fans are gushing over Liam Hemsworth and Miley Cyrus's engagement news, big brother Chris Hemsworth is not at all amused.

According to News Weekly magazine source, the "Thor" actor is concerned that Miley may not be the right girl for his brother Liam.

The source says that Chris worries Miley "is dropping all these hints that she's not marriage material, but [Liam]'s not catching on at all."

The source also added that according to Chris, Miley may love Liam but they are not on the same page. And if it doesn't happen sooner, then Liam is in for a heartbreak. That's because Liam is ready for a serious and official relationship.

Meanwhile, the "Wrecking ball" hitmaker openly admitted in The Ellen DeGeneres show that the engagement ring her beau gave her is really not her style.

As per Cosmopolitan, while talking to Ellen, Miley said that a real jewellry is weird for her as she is used to wearing jewellry made out of gummy bears and cotton candy.

She accepts that her present jewellry and the engagement ring don't look that good together. And because of this, she often replaces the ring with fake unicorn or Loony tune ring.

When asked by her fiance as to why she is not wearing her ring, Miley Cyrus says that it's really not her aesthetic, but she'll wear it because Liam Hemsworth loves her.

The "Hunger Games" actor first met Miley on the set of their movie The Last Song in 2009 and became engaged in 2012. However they called off the engagement in 2013 before getting back together last year.

Meanwhile, Miley seems to have been bonding with her fiancé's family since they were engaged. Earlier this year, she joined the Hemsworth family in Byron Bay for the Falls Festival and Chris's wife and model Elsa Pataky later posted Instagram pictures of them together.

Are Chris Hemsworth's fears for brother will become real? Will Liam Hemsworth and Miley Crusy ever make it to the altar soon? Only time will tell.