Outfit for a glam hen night in London for a size 16-18

[AngryFeet]

Any ideas? I am 5ft 3 and very pear shaped. Tummy is a bit big at the mo but happy to wear spanx to contain it . Arms not great either. Good waist and bust and calves are fine too. So if a dress not higher than knee length and due to very large hips and bum pencil type skirts are bad.

No idea what to wear - we will be doing cocktails on a roof top bar then clubbing and the dress code is glam. The majority of the people going are a well off and very beautiful London crowd. Need to look and feel my best :)

Any links and ideas appreciated

Bump

Drapery dress to be worn with nice jacket,shrug
these dresses are fab for hiding bellies, hips and bums
more drapery dresses

I had a similar do recently but it was day to evening and I just couldn't face wearing my spanx and heels all day. So I wore some black and white hareem pants from monsoon these with sparkly sandals, a purple silky top and black tuxedo jacket. With a killer bag, massive necklace and purple pashmina. I think it worked really well, bit different but smart and on trend (I think??!)

By the way I think a lovely bag, nice statement necklace and pashmina really make any outfit. Maybe just get a little black dress but get great accessories.