Kelly Osbourne fits into clothes ''even supermodels can't''.

The reality TV star's favourite body part is her small waist, which allows her to fit into extremely small sizes of clothing.

She told new! magazine: ''I have an exceptionally small waist for my body shape and size, so I can fit into garments that even supermodels can't.''

However, Kelly's least favourite body part is just below, as she doesn't like her thighs.

Asked for her least favourite body part, she added: ''It's probably my thighs. I look at other girls and they have matchstick legs, but mine have always been toned and muscular.''

The 27-year-old star has sported a much trimmer figure in recent years, which she credits to changing her diet for good, rather than dieting.

She explained: ''If you want to live healthily you have to make a life change and stop doing certain things. Otherwise you starve yourself and as soon as you get to your goal weight you go back to eating the way you were before and put it all back on. You have to commit.''

Describing her diet, she added: ''I normally have an egg-white omelette with spinach, mushrooms and a little Cheddar cheese for breakfast.

''For lunch, it's usually a Chinese chicken salad with ginger dressing. My favourite dinner is mashed potatoes, peas and grilled chicken with a side of spinach.''