Sex robots are now starring in raunchy PORN movies - as a new 18+ erotic TV series airs online.

Dubbed an 'erotic Black Mirror ', Future Darkly is a web sci-fi series forecasting the future of sexual fantasies, in case case a world where X-rated robots roam the earth as companions to human beings.

The first episode of the series, broadcast on X-rated ' Netflix of Porn' Adult Time, focuses on the sex-bots of tomorrow and features 'The Aura Doll', a leading sex robot made in North America.

The star is a woman called Becca who meets up with an older man named Robert with the aim of having a threesome - not with another human, but with Harper, his 'special companion'.

Harper is a "blonde, curvaceous and very lifelike silicon" sex-bot.

The production was made as part of a commercial collaboration with Aura Dolls in a product placement deal and features pornstars Whitney Wright and Tommy Pistol.

The series is directed by acclaimed adult film director Bree Mills, who told The Sun : "I believe we are one of the first mainstream porn companies to shoot a threesome scene featuring a synthetic woman.