The Hemsworth boys continue to have hot Hollywood hook-ups with rumours that Chris Hemsworth has reportedly been seeing starlet Natalie Portman while his brother Liam is in the midst or romancing Miley Cyrus.

The Hemsworth brothers are fast gaining a reputation as major players in the celebrity dating scene and the latest liaison allegedly comes from when the pair first met on the set of the upcoming movie Thor where they both star. The apparent off-screen pair has not even begun shooting in public yet although what goes on behind the curtain is anyone’s guess.

Star magazine was told by and inside source that ever since their first meeting the sparks have really been flying between the pair, with Hemsworth seemingly besotted with his crush on Portman who for her part reportedly loves the attention. This would lead to the unique situation of a Star Wars actress being involved with a Star Trek actor.

Gossipers are worried that any breaking up of the fledgling relationship before filming actually begins could make the whole episode rather uncomfortable.

Portman has previous managed to hook up with the folk musician Devendra Banhart after meeting him during the making of the music video for his hit song Carmensita.

Unfortunately, Natalie Portman’s agent had shot down the rumours which are doing the round in the tabloids, saying simply that the allegations were not true in a message to GossipCop.com.

Hemsworth made fame in the Australian soap opera Neighbours before playing Captain Kirk’s father in Star Trek.