Alexandra Burke slips into a bottom-displaying bandage dress to help her sister celebrate her birthday in style


Bottoms up! Alexandra Burke slips into a naughty peek-a-bum bandage dress to celebrate with her sister

|

UPDATED:

13:27 GMT, 25 September 2012

She's known for her toned body and on Monday evening singer Alexandra Burke didn't hesitate showing it off in a daring bandage dress with cut-out detailing, giving passerbys a sneak peek at her bottom.

Unfortunately she forgot to put on some flesh coloured underwear, leaving her black thong on display as she celebrated her sister Sheniece's birthday in London with her.

Revealing: Alexandra didn't leave much to the imagination in her pink bandage dress with cut-out detailing

Revealing: Alexandra didn't leave much to the imagination in her pink bandage dress with cut-out detailing

And from behind: The singer showed off quite a lot of her figure as her bottom was visible in the cut out pattern

And from behind: The singer showed off quite a lot of her figure as she bottom was visible in the cut out pattern

The
24-year-old songstress showed off her enviable figure, as well as a
cheeky bit of bottom, as she made sure her older sister had a day and
night to remember.

Earlier
in the day the toned singer was seen arriving at The May Fair hotel to
get ready for the celebrations in a biker inspired outfit.

She wore a pair of jeans, a black leather jacket and a pair of black boots.

The look was completed with a pair of classic aviator shades.

Birthday: Alexandra was seen leaving the Mayfair Hotel before heading out for the evening celebrations of her sister's birthday

Birthday: Alexandra was seen leaving the Mayfair Hotel before heading out for the evening celebrations of her sister's birthday

A short while later the singer emerged looking glamorous and party-ready dressed in a pale pink bandage dress with a cut-out feature along the front and back, called the Sinead from Celeb Boutique.

As she turned around though, it became apparent that the cut-out feature gave a cheeky glimpse of her bottom, as well as her black thong underneath.

She accompanied the cleavage and bottom enhancing number with a pair of black platform sandals and a clutch bag.

Glamorous: Alexandra completed her look with a clutch bag and a pair of black platform heels

Glamorous: Alexandra completed her look with a clutch bag and a pair of black platform heels

Sisterly love: Alexandra with her older sister Sheniece who celebrated her birthday on Monday

Sisterly love: Alexandra with her older sister Sheniece who celebrated her birthday on Monday

The former X Factor star wore her honey coloured hair loose and wavy falling over her shoulders.

It seems the close sisters had a full day of activities, some of which was documented by Alexandra on Twitter.

Keen
to share the excitement of her sisters big day, she tweeted: 'Everybody
– please wish my sister @MissSheniece a happy birthday! She is the most
amazing sister in the whole world. Xx #happybirthdayBigSis'

Cake: Sheniece with her birthday cake as part of her all day and night celebrations

Cake: Sheniece with her birthday cake as part of her all day and night celebrations

Alexandra,
who launched her own range of lip-gloss this year, treated her sister
to a spot of afternoon tea, where she presented her with a customised
birthday cake.

The fun didn't stop there though
because the girls headed to a comedy club, which clearly went down very
well with Alexandra who is known for her distinctive laugh.

She tweeted: 'Such a sick night at the Choice Fm's comedy club…. Kojo was a TING… This guy is too talented 4 words.'

A short while later she added: 'I haven't laughed and smiled so much in a long time. Tonight was something I will never forget. '

Quick change: Alexandra arrived at The Mayfair hotel in a biker inspired outfit before slipping into something more glamorous

Quick change: Alexandra arrived at The Mayfair hotel in a biker inspired outfit before slipping into something more glamorous

Quick change: Alexandra arrived at The Mayfair hotel in a biker inspired outfit before slipping into something more glamorous

Alexandra
is clearly comfortable with her figure.

In an article she wrote
recently for the Daily Mail about her holiday to St Vincents, she said:
'I think you should be able to eat what you want, obviously in
moderation, and then have a workout.

'That's
the way life should be, whether you are in the public eye or not. There
is no chance I would ever be a size zero because I love food and I love
holidaying and I like to have fun.'

Les Mis: Alexandra performs during a special performance of 'Les Miserables' in aid of Children in Need's POP goes the Musical

Les Mis: Alexandra performs during a special performance of 'Les Miserables' in aid of Children in Need's POP goes the Musical