Katie Price 'weed in a lunch box' and threw it out of a car window, a friend has claimed.

The former glamour model - who has children Harvey, 11, Junior, eight, and Princess, six, from previous relationships, and son Jett, seven months, with current spouse Kieran Hayler - has been described as ''vile'' by pal Jemma Henley, who claims the 35-year-old star used to relieve herself in her car and often ''squatted'' on the ground in public.

Speaking in the new issue of Heat magazine, Jemma said: ''Katie's got no boundaries - I've seen her squat and wee on the ground. It's all just for attention - she's vile.

''Even when she's sober, she'll wee in a lunch box in the car and just chuck it out of the window.''

Jemma, who lived with the star at her West Sussex home for four months in 2011 after losing her London flat, also described her as ''insecure'' and revealed Katie loves the ''chase'' when it comes to men.

The brunette beauty has previously spoken out about her adventurous sex life with second husband Alex Reid - who she wed in February 2011 and split from less than a year later - and Jemma claims she even showed friends films of their bedroom antics.

She said: ''Katie said all this disgusting stuff about what happened in the bedroom with Alex, and you'd think it wasn't true. But she's got videos - and whenever she's drunk, she'll show them to everyone. It's gross.''

Katie married third spouse Kieran in January last year - just two months after they met - and Jemma said they used to have sex ''everywhere'' but thinks the relationship won't last.

She added: ''I doubt it will last - she gets bored. He'll get fed up, but I think he'll put up with a lot first.

''I think her getting bored could be an insecurity thing - if you get bored with the way you look, you just change it.

''It's an addiction and adrenaline. It's the same with guys, as well, I guess.''