21-year-old Lucy looked sensational on the red carpet yesterday (September 19) as she stepped out in a tight-fitting red number with cream and black lace detailing around the bust.
The brunette made sure to make the most of her assets given the theme of the night, with the top half of her dress resembling a bra. Meanwhile, her fiancé Mario looked as smart as ever in a black suit and pristine white shirt.
It's no surprise that Lucy was invited to the UK Lingerie Awards, as she definitely knows a thing or two about looking good in your underwear.
Not only has she has been seen modelling fellow TOWIE star Jess Wright's underwear collection on an episode of the hit reality TV programme, but earlier this year she also teamed up with swimwear brand Bella Bamba to design a luxury collection of bikinis and swimsuits and even turned up to the launch in July wearing a teeny weeny piece from the line, which showed off her enviable figure.
Former TOWIE cast member Maria Fowler looked her usual glamorous self at the ceremony, sporting a short nude and black dress that she admitted to having a bit of help to fit in to.
She tweeted: "Haha Spanx just won an award! Glad I have mine on holding me in LOL!!!!!!!! X #lingerieawards"
Other stars in attendance were Girls Aloud's Sarah Harding and Danny Jones from McFly, who seemed to have bonded rather well with Mario, as Lucy tweeted a picture of her beau planting a big kiss on the boy band singer's cheek!
And as if the stunning celebs weren't enough to look at, there was a large yellow python waiting to greet guests on the red carpet, held by previous Britain's Got Talent contestant, Georgina Leahy - apparently also known as the 'crazy snake lady'.
It looks like it was a fun night!
Which star do you think looked the best at he awards? Let us know in the comment box below.
Read more: TOWIE's Lucy Mecklenburgh wears a dress made from cupcakes
Read more: TOWIE's Mario Falcone has an interesting new hair style