Binky Felstead has been doing ''Insanity-style'' work-out sessions to get a great body.

The 'Made in Chelsea' star - who is now a size eight - revealed that she has stepped up her exercise regime to get in the best shape possible since she started modelling for Bluebella and has now become obsessed with fitness.

Speaking at the launch of Bluebella lingerie at Debenhams in Oxford Street, London, on Thursday night (19.11.14), she said: ''I've been working out a lot and dare I say it I've become a little bit addicted to working out. I never ever thought I would say that but I'm really getting into to it now.

''I'm doing at least three work-outs a week. A lot of the time I'm doing Insanity style fitness sessions in the morning in my living room at home. It's 45 minutes of absolute torture but I do feel really good about myself afterwards.''

The 24-year-old reality television star wore a tight fitting top and an A-line skirt at the party and posed for pictures with two models wearing Bluebella underwear.

The Chelsea socialite shed her excess weight over the summer months in preparation for her lingerie photo shoot, but has managed to retain her svelte figure and admits she is feeling really confident about her body.

She said: ''I had to get in shape back in the summer for my Bluebella lingerie shoot but I have kept it up and now I can fit into all the clothes that before I wouldn't have worn.

''Even a few months ago I would not have thought I would fit into a size 8 skirt like this, I absolutely love this look and I feel so confident with my body at the moment.''