New owners of a Japanese robot have been asked to sign a no-sex contract before they are allowed to take it home.

SoftBank is making customers promise that they will not use the "emotional robot" Pepper for sex.

"The policy owner must not perform any sexual act or other indecent behaviour," the agreement states.

Pepper is designed to mimic human emotions and specifically help Japan's ageing population in their own homes.

They are found in stores as greeters but a home version sold out with minutes when it went on sale on Saturday, costing around £1,100 up front and £250 a month.

People are not allowed to use Pepper, 120cm tall, to hurt others, send spam email or in fact to even take it outside.

Altering its software to give it a 'sexy' voice is also banned.