Chocolate bars that could help men and women orgasm are on the way.

Sex expert Dr Trudy Barber told the European Federation of Sexology Conference in Brighton the chocolates could be available in five years.

They will contain higher than normal levels of the chemical phenyl ethylamine, which the body releases during sex, reports The Sun News Paper.

            

Chocolate currently on sale have up to 660mg of phenyl ethylamine. It's related to dopamine and adrenalin - substances which heighten bodily sensations.

The new bars would contain far higher levels of the chemical after it was found to give an orgasm-like high without having sex.

Dr Barber, a specialist in internet sex, also claimed that robotic prostitutes are set to be developed - and predicted under-the-skin microchips which tell if someone has been unfaithful.

They could record bodily temperature changes, revealing whether partners had been steamy with someone else.