Frisky football fans have been warned that one-night stands could lead to seven years behind bars at this year’s World Cup.

Boozy bunk-ups are officially banned at the tournament, which starts in November, with FIFA officials warning there will be “no exceptions” made.

There is a growing unease from UK law enforcement about the possibility of British fans facing severe penalties for “doing everyday things ­accepted at and after games”.

A police source said: “Sex is very much off the menu, unless you are coming as a husband and wife team. There definitely will be no one-night stands at this tournament.

“There will be no partying at all really. Everyone needs to keep their heads about them, unless they want to risk ­being stuck in prison.

“There is essentially a sex ban in place at this year’s World Cup for the first time ever. Fans need to be prepared.”

Sex outside of marriage and homosexuality are illegal in Qatar, where the tournament will be held, and each ­carries a prison ­sentence of up to seven years.

FIFA has said “all are welcome” at the tournament – but there is a growing concern that is not the case. There are already reports of fans with different surnames being stopped from booking and sharing hotel rooms.