EMILY Atack dazzled in a plunging black top and bold eye make-up as she posed for a glam new selfie.
The actress, 34, styled her blonde hair into bouncy waves, donning a back-combed style for extra volume.
Emily, who admitted she found stripping off for her new role in TV series Rivals "liberating", donned a skintight top with a scoop neckline in the sassy image promoting her new show.
She accessorised with gold hoop drop earrings with pearl detail and a huge ring.
The Inbetweeners star then opted for a golden glow, with bronze powder and a pop of pink blusher on her cheeks.
Blue eyeliner and mascara and baby pink lip gloss finished off her look.
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In her Instagram Stories caption, Emily made a huge reveal about her racy new series - based on the book by Jilly Cooper.
She wrote: "Calling all Hulu folk.
"Rivals is now available to watch in the US."
She added: "Bring back blue mascara!"
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Emily's telly return came after she gave birth to her baby boy in June.
She has candidly told how she felt "sexier than ever" after her pregnancy journey.
Emily then bagged a role on TV's "horniest" series, Rivals.
Rivals is an adaptation of Jilly Cooper's 1988 novel and follows a group of characters as they vie for business and each other's affections in the cut throat world of independent television.
Emily plays the Deputy Prime Minister, Sarah Stratton, and can be seen playing naked tennis with gigolo Tory MP Rupert Campbell-Black, played by Alex Hassell.
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But the actress is not fazed by getting naked in front of the cameras, as it is all part of the job.
Speaking to Sky News about getting bare for her Rivals debut, Emily said: "It's so liberating.
"Of course there are going to be people out there that take what you do and try and spin a negative narrative on it. I'm a woman, of course people are going to do that.
"But what I have to keep stressing to people is I'm exactly where I need to be. I'm at work, I'm playing a role, I'm very comfortable and I'm on a closed set.
"We have intimacy coordinators, I get on very well with my director, the crew, the actors and I'm very happy and comfortable.
"It's other people's characters that need to be looked at if they're going to twist it into some grotesque negativity."
The series stars a host of British TV favourites, including former EastEnders star Danny Dyer, Doctor Who's David Tennant, and Skins heartthrob Luke Pasqualino.
Dame Jilly Cooper is known for her kinky books and, although there is a lot of saucy scenes, body-confident Emily has defended their purpose.
"We keep saying that the nudity and the sex scenes are a huge part of this but there's always a reason for them," she said.
"We're not just getting our kit off for no reason. They're very integral to the storylines and characters."
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Her co-star Alex Hassell then revealed an X-rated moment in one scene that wasn't in the original script - and thought it would "break the ice."