London: A new book has revealed that people are experimenting with new relationship rules and ‘Flexi-sexual’ relationships are one of the trends.

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Helen Croydon has revealed in her book ‘Screw The Fairytale: A Modern Guide to Sex and Love’ that flexi-sexual is the latest buzz word for straight men and women who experiment with bisexuality, reported.

The book says that flexi-sexuals in relationships are experimenting with their own sex, with their partner’s consent and the sexual competition is much easier to bear if one’s nemesis is of a different gender.

Comedian Rosie Wilby set about experimenting with flexi-sexuality as part of her comedy show ‘Is Monogamy Dead?’ while Olympic star Tom Daley had recently announced that he was dating a man but ‘still fancies girls’.