'I've only had work on my lips': Megan McKenna denies having surgery as she showcases her sizzling physique in her debut beachwear collection

Megan McKenna has made a name for herself as one of the more colourful characters to enjoy a sting in the Big Brother house.

But the TOWIE star tells FEMAIL that she simply doesn't care if she's criticised for her behaviour on reality TV.

In fact, the 23-year-old says she likes to give trolls a taste of their own medicine by sending them messages that quickly 'put them in their place'.

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Megan McKenna, who's designed a beachwear collection, doesn't take comments from trolls lying down and has fun replying to them

Megan, pictured in one of her designs, said the collection with Miss Pap is half 'edgy' and half 'glam'

She said: 'I like replying to the nice tweets, but I like replying to the bad tweets too. I like to put people in their place, it's fun. 

'With every bad tweet I get, there are loads of good ones. I get loads of good ones, I focus on the good ones.'

Megan came under fire for her fiery temper after her appearance on this year's Celebrity Big Brother but says she doesn't take the comments aimed at her online seriously.

In fact, there's one accusation that she takes as a compliment - when trolls insist that she's had a helping band with her 'plump' bum. 

Megan said: 'The only surgery I've had is my lips, I haven't had anything in my bum - I don't need to I've got a big bum! I take it as a compliment.'

She also insists that she won't go under the knife to change her look even more. 'I like the whole natural vibe,' she said. 'I don't like the fake look.'

One of Megan's favourite designs is a coral-pink bikini, which 'makes you look really tanned,' pictured

Another of Megan's favourites is a purple boho-style co-ord which was inspired by glamorous Esmeralda from the Hunchback of Notre Dame

Megan would love to see Kim Kardashian in her designs and said 'She just looks a million dollars'

Now the TV personality has become a model, showing off her physique in bright bikinis and delicate beachwear for a new collection with Miss Pap - but she reveals that she never sets foot in the gym.  

Megan admitted: 'I hate the gym, working out in front of people makes me feel really insecure. 

'I don't really work out but I run around a lot and I'm always travelling so it's not like I'm sat around slobbing at home.'

Her stunning figure is down to a 'naturally fast metabolism' since she doesn't worry about her figure, although she does need to eat carefully has she has coeliac disease, an intolerance to gluten that can have serious long-term health consequences. 

She said: 'I have to watch what I eat all the time. I do actually eat quite well, I have to make all my meals from scratch to make sure there's no gluten.'

Creating her own designs has always been an aim for Megan, 'I've always wanted young girls to look up to me and want to wear my stuff'

Megan is looking forward to seeing women of all ages wearing her summer collection which is Kardashian inspired

Despite Megan's toned body she 'hates' the gym because it makes her feel self-conscious

Designing the range is '100 per cent' a dream come true for Megan who can't wait to see women in her clothes.

And there's one prolific selfie lover who is number one on her list.

'I'd love a Kardashian wearing it - that's a bit far-fetched,' she laughed. 'I love Kim Kardashian's style. Some of her stuff I say to the Miss Pap team "Can you design something similar to this?"

'She just looks a million dollars.

'But I'd love to see people all over the world in the collection. All age ranges can wear it as well, young girls and older women. My mum wears some of the collection, she loves the waterfall jacket.'

Creating her own designs has always been an aim for Megan, 'I've always wanted young girls to look up to me and want to wear my stuff,' she said.

'My dream was always to become an icon and it's such a nice feeling to achieve that. I'm proud of myself.'

Megan loves appearing on TOWIE and spending time with her friends and boyfriend Pete Wicks on-set

Megan's 'plump' derriere has led to trolls accusing her of surgery but she said it's all natural

The collection, which launches tomorrow, has got 'two vibes.' Megan described one half as 'quite edgy and cool. Some of it you'd wear with trainers and a visor and it's luminous and a bit neon.

'Then it goes to Marbella glam, that you'd wear with wedges and would look so good poolside.'

One of Megan's favourite designs is a coral-pink bikini, which 'makes you look really tanned' and a purple boho-style co-ord, which was inspired by glamorous Esmeralda from the Hunchback of Notre Dame.

She took a hands on approach going into the studio with designers and picking the materials and patterns. And boyfriend and TOWIE co-star Pete Wicks was impressed with how dedicated she was - but he was blown away when she gave him a sneak peek at the collection.  

Megan said: 'Pete's seen a few pictures from the shoot and said: "Oh my God, you look amazing." 

'He's a great boyfriend, he's very supportive.'

Megan wanted to use TOWIE to show the public her 'nice side' after her appearance on Celebrity Big Brother

On the shoot in Dubai, Megan took a cleavage-baring behind the scenes snap in her plunging culotte-jumpsuit

Megan is loved up with boyfriend Pete Wicks and called him a 'supportive boyfriend,' pictured sharing a moment on Instagram

Since they became a couple last month, the pair have already been on a romantic trip to Dubai during which Megan shot the Miss Pap campaign, with Pete showing plenty of appreciation for Megan's bikini body.

She starts filming for the next series in July and is having a blast 'filming with my two best friends [Courtney Green and Chloe Meadows] and my boyfriend - it's really good fun.

'We get to do lots of things, [TOWIE] came up with lots of stuff for us to do and they throw amazing parties. 

'I'm a really lucky girl.'

But it's not all fun times and there've been plenty of clashes with cast members, but she said: 'I don't get on with everyone but that's real life.'

Megan joined TOWIE in the hope of changing people's minds about her following her explosive appearance on this year's Celebrity Big Brother and feels like she's done that.

'Everyone has a meltdown, everyone feels down, especially when there are lots of people you don't know - and alcohol,' she said. 'It's nice that people can see the nice side of me. 

'But that doesn't mean I'm going to take s***,' she laughed.