Michelle Rodriguez is jealous of Cara Delevingne's friendship with Rihanna.

The 'Machete Kills' actress thinks the 21-year-old model's relationship with the 'Pour It Up' singer is ''disrespectful'' and

has reportedly warned her girlfriend to stay away from the Barbados-born beauty.

A source told Britain's Star magazine: ''Michelle knows Cara is close to Rihanna but thinks it's disrespectful for the two of them to be hanging out so much, especially as they've only just gone public with their relationship.''

Michelle reportedly became envious when the pair were pictured together at Karl Lagerfeld's supermarket inspired catwalk for the house of Chanel during Paris Fashion Week earlier this month, and she is riled by Rihanna's apparent mockery of her relationship with Cara.

The source added: ''Rihanna has told pals she thinks the whole thing is funny and pretty ridiculous. She's just friends with Cara, nothing more.''

The news comes after reports Cara is keen to tie the knot with Michelle in a secret wedding at the Niagra Falls, Canada after only two months of dating.

A source told the Daily Star newspaper: ''It's typical of Cara to want to do something crazy and impulsive. But she seems deadly serious.''