How low can you go? Corrie star Helen Flanagan steals the limelight at Katherine Kelly's leaving do in plunging dress

By Daily Mail Reporter

Last updated at 1:47 PM on 20th November 2011

Two months ago, Helen Flanagan thrilled her male fans when she posted a photo on Twitter of herself in a very low-cut dress.

But after previously teasing with just a close-up, the 21-year-old actress showed off the full dress in all its glory last night.

The soap star, who plays Rosie Webster, gave onlookers an eyeful of her ample cleavage in a plunging outfit as she attended co-star Katherine Kelly's leaving party.

How low can you go? Coronation Street actress Helen Flanagan arrives at Katherine Kelly's leaving party at The Place in Manchester in a form-fitting dress

Seen it before: Flanagan previously showed off the dress in a Twitter photo taken in Paris in October

Arriving at The Place nightclub in Manchester's city centre, the WAG looked sensational in a £525 Agent Provocateur 'Thora' dress, which she teamed with peep-toe heels and a white Chanel quilted bag.

Unfortunately for Flanagan she was dateless for the event as her boyfriend Scott Sinclair had been playing in the Swansea City V Manchester United game, which they lost 1-0.

Flanagan previously gave fans a glimpse of the dress when she wore it for a romantic weekend break in Paris with Sinclair in October.

She tweeted: 'Hey guys just home now. I had an amazing night at Katherine Kelly's leaving do - such an incredible actress.

'So blessed to have such lovely people around me and had amazing chats with special people.'

Flanagan's partying came after a busy day for the actress.

Hello boys! The actress's £525 Agent Provocateur dress showed off her curves in all their glory

Earlier that evening, she covered up from the cold in a white coat as she turned on the Preston Christmas lights with on-screen lover Ryan Thomas, who plays Jason Grimshaw.

It'll soon be time for Flanagan's leaving do after she announced she is quitting the soap after 11 years of playing Rosie Webster.

The aspiring model will be seen on screen until February 2012, before moving to Swansea to be with her footballer boyfriend Scott Sinclair.

Time to say goodbye: Katherine Kelly (left) was marking the end of her five years in the soap, while Michelle Keegan also attended

All dressed up: (L-R) Paula Lane (Kylie Platt), Debbie Rush (Anna Windass) and Julie Hesmondhalgh (Hayley Cropper) turned up to say farewell

All dressed up: (L-R) Paula Lane (Kylie Platt), Debbie Rush (Anna Windass) and Julie Hesmondhalgh (Hayley Cropper) turned up to say farewell

In a recent interview, she insisted she was nothing like her character, claiming she was 'reserved and shy'.

However, onlookers who saw her outfit last night may probably disagree.

Other stars at last night's party included Michelle Keegan, Simon Gregson, Jennie McAlpine, Michelle Collins, Jack P Shepherd, Debbie Rush, Ryan Thomas, Mikey North and Paula Lane.

Paired up: Michelle Collins and the show producer Phil Collinson posed up outside the bash (left), while Jack P Shephard arrived with fiancee Lauren Shippey

Paired up: Michelle Collins and the show producer Phil Collinson posed up outside the bash (left), while Jack P Shephard arrived with fiancée Lauren Shippey