GETTY Marital sex is set to decline with the advancement of sex bots

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Speaking at the International Congress of Love and Sex with Robotics, Dr Trudy Barber said sex bots will become the social norm within 25 years as technology develops to make them more lifelike. Dr Barber, a leading authority on the impact of technology on sex, said: “It could be that we are so busy with our lives, we are so embedded in our technological narrative that the idea of engaging in long-distance sex and robot sex is actually a natural process in our evolutionary cycle.

“I think what will happen is that they will make real-time relationships more valuable and exciting.” She added that machines would allow people to appreciate “the real thing” more. Devices on the market - such as Rocky or Roxxxy True Companion - are currently priced at around £7,000, but as the technology behind them develops they are expected to become more affordable in coming years.

The most realistic sex robots you will ever see Mon, July 10, 2017 A blonde posing provocatively to a brunette lying seductively on her bed these bombshells look like every man’s dream partner. However, they are in fact a collection of sex robots worth between £75 and £750. Play slideshow Media Drum 1 of 20 A brunette sex robot in a night gown lies back on an unmade bed.

GETTY Sex with robots could soon become the social norm