Kerry Katona makes a splash in skimpy bikini as she soaks up the sun on Spanish holiday

Kerry Katona has been stepping out wearing a series of tight-fitting outfits recently to show off her dramatically reduced figure. But if there is one way to flaunt it, then wearing a bikini must come out on top. The former Atomic Kitten star did just that as she splashed around in the pool at a water park in a turquoise bikini during a holiday in Spain with husband Mark Croft.

Kerry Katona showed off her slim figure as she enjoyed a day out at a water park in Spain while holidaying with husband Mark Croft

The mother-of-four looked delighted as she cavorted with Croft and topped up her tan on Saturday while taking to the flume and even enjoying a ride in a giant rubber ring. And who could blame her - because her weight-loss surgery has clearly put a smile back on her face and given her the confidence to don such a revealing ensemble. The 28-year-old has managed to go from 14 stone to eight stone in nine months and last August underwent £15,000-worth of liposuction and overhauled her eating regime.

Kerry Katona The mother-of-four underwent £15,000 of weight-loss surgery last August

Kerry with husband Mark as the pair took a dip in the pool together

While she admits she allows herself her favourite fatty treats at the weekend, she lives on a diet of Bran Flakes, salad and protein shakes during the week. She also drinks a pint of water with every meal as well as green tea to speed up her metabolism.

However, the star's personal trainer Scott Wright has said that Kerry did not need to have liposuction. The ex-Coronation Street star turned personal trainer who started working with Kerry in October last year, said she could have lost the weight through simple exercise

Kerry pictured in August 2006 (right) and in Spain this week

Kerry shares a tender moment with husband Mark, who looks as if he's gained all Kerry's lost pounds

He told Closer magazine: 'I'm not totally against liposuction but instead of lipo, Kerry could have lost a lot of that fat in a month, with the right diet and exercise.' The personal trainer also revealed that Kerry, who suffers from bipolar disorder and was declared bankrupt last year, is much happier now.

He said: 'Kerry has found exercising improves her moods. It's amazing how much more positive she's been since I first met her. 'She was determined to change her lifestyle so she was in the right mindset. 'She loves exercising now, and it's given her a good reason to get up in the mornings.'

The pair had a float in a giant rubber ring during their fun day out

The former Atomic Kitten singer appears to be a little chilly

Scott says that he encouraged Kerry to swap her old diet of sugary cereal, full-fat Coke and beef curry for a healthy 1,800 calories-a-day diet. Her meals would include steamed chicken and fish, salad and stir fried veg. He also insisted that she eat something every two and a half hours.

He also said she was a model student, adding: 'I'd heard of Kerry before and knew everything she's been through. 'But I found her to be one of the most motivated people I've ever trained.

'She got into it within a few weeks. And she was determined. If she ever lost her enthusiasm and said in the middle of a run, 'I can't go on any more,' which was rare, I'd tell her she was letting me down, and that would get her going again!' 'She's still smoking, but there's no way I'd let her have a cigarette during our sessions!'