US actress strips to her birthday suit in raciest ever Instagram pic showing her perching by a rail of clothes – as she prepares for a sexy new year

The stunning former Disney star, 20, stripped to her birthday suit and just managed to cover her modesty as she perched beside a rail of clothes, in a snap taken during New York Fashion Week.

The American actress is known for posting provocative images, often showing off a lot of flesh, but this must be her raciest post to date.

She wrote alongside the pic: “This was fun #fashionweek#2017highlights.”

So far the pic has racked up an eye-watering 575,000 likes in a matter of hours from adoring fans.

One commented “Slayy 🔥🔥💖💖” while another wrote: “You look like Marilyn Monroe 😍🔥🔥🔥🔥😍.”

Recently Bella also went nude for a sizzling mag photo shoot for GQ Mexico, after attending their awards bash.

Red-haired Bella, who has almost 17 million Instagram followers, has had a brilliant year, picking up plenty of work in various films and two major music videos – one by Liam Payne.

But heartbreak has also haunted her this year after the death of her ex, rapper Lil Peep, aged 21.

Bella led the tributes when the sad news hit in November, writing: “I just wanted to say anybody out there who’s a Lil Peep fan, you guys know how talented he was, you guys know how great he was. Well he was even more f***ing great as a person.”

She added on Twitter: “Peep you deserved more out of life. Life didn’t do your greatness justice.”

But Bella has now thrown herself back into work on a TV show called Crazy In Love.

While filming a promo for the series, she posed in cream lingerie for her fans, showing off a 1950s bombshell look.

After her nude pics came out in GQ Mexico, Bella posted on Instagram about the fact she struggles to always be body confident.

Admitting she does retouch her snaps, she wrote: “Lemme tell you I have insecurities, about pretty much everything. That’s natural & that’s human.

“You might look at this photo and think oh shush bella, but just know everytime someone looks in the mirror they simply don’t see what everyone else sees.

“Know that it’s completely normal to feel insecure and it’s accepted. honestly I wish everyone talked more about their insecurities so more people in the world could know they aren’t alone. That it’s ok,” she added.