Katie Price has vowed to never wear a onesie again after catching her husband Kieran Hayler cheating on her with friend Jane Pountney at her onesie-themed party.

The former model - who threatened to divorce the 28-year-old hunk last year after finding out about his infidelity - has claimed the she caught the pair walking up to her horse stables together on a security camera at her house while her other guests partied at the fancy dress bash.

Speaking on an episode of Channel 5 reality show 'Celebrity Big Brother', which she was reportedly paid £500,000 to star on, she said: ''Whenever I do parties they are always fancy dress because I think people make an effort. So this was the first year I didn't because last year I did a onesie one and Keiran and Jane f***ed in my stables so I will never wear a onesie again.

''It was on the cameras, it was one o'clock in the morning on my cameras. You can see them walking up to the stables and I never knew, everyone was in my house partying.

''Don't mess with the Pricey!''

The 36-year-old star also revealed she once attacked Jane, 49, after finding her sharing an intimate moment with Kieran - who also cheated on Katie with her pal Chrissy Thomas - on a beach while they holidayed together.

She said: ''I got her head and pulled her off the sunbed, I started f***ing whacking her, going 'I f****ing knew it, I knew it you f***ing s**t, you w***e.' ''

The 'What Katie Did Next' star - who has two kids with Kieran, 16-month-old Jett and five-month-old Bunny, as well as Harvey, 12, Princess, nine, and Junior, seven, from previous relationships - has vowed to stand by her husband, whom she married in January 2013.

The couple - who recently moved to a new £1.3million home - are said to have left the property so Katie could leave memories of Kieran's stable romp behind her.