The Karen Taylor actress looked exquisite as she showed off her slimmed-down frame in the figure-hugging outfit.
Lorraine, 47, looked worlds away from her role as loudmouth Karen on the BBC soap opera as she glammed up for her sister’s birthday.
The star looked more glam than ever as she put on a leggy display in the tiny dress.
Adding some extra height to her frame, Lorraine opted for a pair of open-toe red high heels as she struck a variety of poses alongside her pals.
Lorraine appeared to be relaxing in a stunning apartment with a glass-frame balcony which looked out onto stunning views.
She gave a glimpse into the wild night out as she shared a slew of her and her pals dancing the night away on the dancefloor during the epic birthday celebrations.
Getting playful, the group also had funky sunglasses shaped into love hearts which appeared to be emblazoned with “Karen’s 50th” across the darkened lenses.
Captioning the Instagram post, Lorraine said: “What a great night!!! @karenstanley_74 @dstanley80 @junegoldring @sophiestanley_93 & Lucy …proper funny banter all night ,cheers girls ,great memories of Karen’s 50th to [keep] forever.”
Her fans were left in awe at the star’s incredible outfit as they gushed over how incredible she looked after she confessed to ditching five stone as part of her body transformation.
One follower said: “You look gawguss!”
Another referenced her weight loss as they added: “You look fab ❤️ Lorraine well done you.”
Before a third commented: “U look phenomenal.”
Lorraine has had jaws-dropping over the past year as she continues to flaunt the results of her impressive transformation.
She shocked her followers with her before and after photos after she managed to lost five stone in just the space of a year.
Speaking at the time, she said: “What a difference a year makes.
“Five stone down, feeling good, clean living, healthy choices, new me, healthy mummy.”
Lorraine is looking happier than ever after she landed another new role after her brutal axing from the soap.
She announced today that she’s set to star as Queen Rat in this year’s Dick Whittington pantomime in Portsmouth.
The star, who is from the seaside city, will tread the boards at the Kings Theatre during the festive period this year.
But it’s not the first gig she’s found herself since being dropped from EastEnders as she recently started shooting for the upcoming film Departures, directed by Neil Ely and Lloyd Eyre-Morgan.
Lorraine will play Janet in the British picture – the mother of main character Benji – who returns to Amsterdam after having an affair with a married man there the year before.
Soap fans were left outraged last year when it was confirmed EastEnders matriarch Karen would be written out of show, with the Launderette manager last seen in Walford in February.
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