By RICHARD SHEARS

Last updated at 23:59 07 March 2008

The runaway teenager had told her parents she wanted to come home.

Perhaps 16-year-old Stacey Mitchell had had enough of sharing a house with two lesbians who thought of themselves as vampires.

But she would never make that trip. She had aroused the jealousy of one of her flatmates, even though she had been living with them for only 11 days.

So the two women drugged Stacey and then battered her to death with a concrete block. They also tried to strangle her with a dog chain.

When, 45 minutes after the attack began, she finally died, her killers celebrated with a kiss over her body - which they then dumped upside down in a rubbish bin.

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Jessica Stasinowsky, 21, and Valerie Parashumti 19 - who were said to be sexually aroused by violence and bloodshed - were jailed for life for the murder of Stacey, from West Moors, Dorset.

Neither showed any remorse, laughing and smirking as details of the case unfolded at the court in Perth, Western Australia.

The trial heard that Stacey's family had moved from Britain several years ago. The teenager moved in with the lesbians in December 2006, after running away from home. She had told her parents the day before her death that she wanted to return.

But Stasinowsky and Parashumti were getting "annoyed" with her, they later told police, and Stasinowsky also thought the teenager was flirting with her lover.

Feeling the need to prove that Stacey meant nothing to her, Parashumti devised the murder plot, with Stasinowsky her partner.

On the day of her death Stacey joined in a drinking session with the lesbians. But her glass had been spiked with a sleeping tablet.

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As Bach's St John's Passion was playing throughout the house, Parashumti began raining blows on the teenager. When Parashumti complained she was taking too long to die, Stasinowsky wrapped a chain around her neck to strangle her.

Much of the incident was captured on a mobile phone video in

which the lovers could be heard mocking Stacey's English accent.

Yet the hatred did not end there. Weeks later Stasinowsky told a prison officer she wished her death throes had lasted longer.

Parashumti's lawyer, David Edwardson, said she had had a violent family life and had been associated with the vampire sub-culture since she was ten, when she started experimenting with drinking blood, first her own and later that of others.

The lawyer for Stasinowsky, Andree Horrigan, said her client believed "she and Miss Parashumti were conjoined essentially."

Justice Peter Blaxell told the women, who admitted murder: "You have each had more than a year in custody to reflect upon the evilness of your crime, yet you still lack remorse and obviously place no value on the sanctity of human life."

He said they enjoyed "being sexually aroused by the infliction of violence."

Outside the court, police read a statement by Stacey's parents Andy and Sophie, which said: "We still can't believe that she has gone and the violent way in which her life ended. Though we have to accept the sentence, no amount of time would ever be enough."