Bum rap ... Alex forgot to wear flesh-coloured undies under her sexy dress
Xposure
Published: 5 hrs ago
ALEXANDRA Burke flashes her bum and skimpy underwear in a revealing peek-a-boo dress.
The X Factor winner dressed up for a night out in London last night to celebrate her sister Sheniece's birthday.
But Alexandra, 24, stole the spotlight in a skin-tight bandage dress with cutaway holes that gave onlookers a glimpse of her peachy behind and tiny black thong.
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The curvy singer wasn't embarrassed about her revealing outfit - she grinned at photographers as she arrived at the May Fair Hotel.
Inside the birthday party, Alexandra surprised Sheniece with afternoon tea and a special birthday cake - before whisking her off to a comedy club.
And Alex, at least, had a good time.
She tweeted at the end of the night: "I haven't laughed and smiled so much in a long time. Tonight was something I will never forget."
Read more: http://www.thesun.co.uk/sol/homepage/showbiz/4556523/alexandra-burke-flashes-bum-revealing-dress.html#ixzz27VkEqoeN
