Megan Fox and Machine Gun Kelly are more than just friends, according to a new report.

The duo sparked romance rumors after they were seen spending time together last week following Megan's split from husband Brian Austin Green.

And now it's claimed the 34-year-old actress has 'definitely' hooked up with the rapper despite her estranged husband insisting they're just friends.

'They have definitely hooked up and are seeing where things go,' the source added.

The Jennifer's Body actress was seen with 30-year-old MGK - real name Richard Colson Baker - last week.