Actress and singer Bella Thorne, 21, has posted a raunchy topless snap to her Instagram showing her frolicking with a mystery woman.

Bella, who came out as pansexual earlier this year, teased her adoring fans with the candid snap, which sees her lying on top of her tattooed lover, wearing just a pair of black undies.

However, her followers were more concerned that her new girlfriend was fully clothed and – shock horror – wore dirty Converse trainers in bed.

One dirt-phobic fan expressed their disgust: ‘Shoes in bed? Kick her to the curb’.

Another praised Bella’s refreshing honesty. ‘Thank you for sharing your truth. Not everyone has your balls. Side note. You have never put your sexuality in the closet when most celebs had too. It’s these decisions you make, that for me, are most important’.

Bella, who previously dated reality star Scott Disick, said her new squeeze is ‘very cute’ but ‘camera shy’.

The star is eager to turn the notion of conventional beauty on its head, and said: “Breaking the taboo of what’s classified as beautiful has always been a vision of mine”.

Bella recently posted a series of startling, make-up free pics which she said boosted her confidence.

The actress, who has 21 million followers on Instagram, has even gained plaudits from the porn industry after directing an adult movie for Pornhub. She has expressed interest in directing a horror movie too.

Last year, the former Disney actress was overwhelmed by support from fans after admitting she had been molested as a child.