AUDIENCE ratings for the new series of Big Brother have plummeted despite action hotting up inside the house.

Nearly seven million viewers watched Friday night's opening episode, a record for the Channel 4 show.

But by Sunday that figure was down to 4.2 million, and on Monday night only 3.2 million tuned in.

That is 800,000 viewers fewer than the corresponding show last year.

The ratings drop comes despite flirty Anouska's attempts to get steamy on screen.

Last night, she got to grips with fellow housemate Scott by demonstrating her kiss of life technique.

The 20-year-old nursery nurse instructed him to lie spread-eagled on the floor, then knelt over him in a low-cut top and showed off her first aid skills.

Then she got up and sprinted around the house squawking: "My boobs are falling out."