[Jackie]

Heidi Fleiss stunned her fellow Celebrity Big Brother housemates by springing to life during the latest task this afternoon.

The 44-year-old former Hollywood madam - who has spent the majority of her time in the house either in bed or half-asleep on the sofa - impressed the others with her performance in the Klapped-Out Factor obstacle course, in which they all had to compete as OAPs, helped by "care assistants" Stephanie Beacham and Ivana Trump.

Fleiss, dressed in an old-fashioned nightgown, knocked back a glass of sherry and leapt on to the stair lift, where she was squirted by teapots, before plunging her head into a large vat of stew to "dunk-a-dumpling", breaking the bowl with her vigour.

She then wheeled down a ramp on a wheelchair into a pool of water, quickly retrieved a bus pass with her name on it and moved on, to crawl under a net filled with broken biscuits.

Fleiss speedily completed the challenge by riding a mobility scooter around a hatstand, a grandfather clock and a lamp, hurled herself into a rocking chair and threw a large mug of tea down her throat, most of which she actually chucked over her shoulder.

Thong Song singer Sisqo told her afterwards: "Heidi, you did surprisingly well."

Fleiss, who is up for eviction this week and considered quitting at the weekend, told him she felt she had not put much effort in so far and he told her: "You thoroughly made up for it with this challenge."

All of the housemates except Beacham and Trump took part in the obstacle course in the garden, which left them cold and wet.