1:12pm UK, Monday November 28, 2005

Dr Who's most deadly enemies, the Daleks, have taken time off from taking over the universe to star in a porn film.

Despite only being equipped with plungers, the croaky-voiced evildoers have been cast in an 18-rated film alongside three naked "disco babes".

180 Dalek Dr Who Monster

Dr Who's deadliest foe

Normally only seen making the Doctor's life a misery, the metallic monsters are shown chasing the girls round a spaceship and getting involved in various X-rated activities.

However, the people who dreamed up the Daleks are not amused.

BBC chiefs are said to have had copies of the DVD - called Abducted By The Daleks - withdrawn from Internet auction site eBay.

And the estate of creator Terry Nation reportedly plans to sue.

Estate director Tim Hancock told The Sun: "The reason the Daleks are still the most sinister thing in the universe is because they do not make things like porn.

"They weren't ever intended to be sexual creatures. It's simple - the Daleks do not do porn."