Willow Smith, 13, raises eyebrows as she is pictured lying in bed with 20-year-old actor Moises Arias

A picture of 13-year-old Willow Smith lying in bed with a 20-year-old has sparked controversy after it was posted online.

In the black and white Instagram snap, the daughter of Will and Jada Pinkett-Smith is seen with actor Moises Arias.

Arias, famous for his role as Rico on Disney's Hannah Montana, is shirtless as he leans against a wall, while Willow lies on her side next to him, her head resting on her arm.

Controversial: Willow Smith, 13, has raised eyebrows as she is pictured with 20-year-old Moises Arias in a new Instagram snap

Posted: The black and white photos have been shared on social media and also appears on her friend Kylie Jenner's website

She is casually dressed in jeans and a top, and looks past the camera.

While the pair's behaviour is innocent, the picture sparked a backlash from fans who said the setting was too mature for the young teen.

Arias allegedly posted the Instagram himself before deleting it - but not before his fans reposted it.