Women are more likely to cheat on their other half on their hen nights than men are on their stag nights, according to a new survey.
Research by OnePoll.com revealed that 21 per cent of women had kissed or slept with someone else just before their wedding, compared to 16 per cent of men.
And it seems, while women are more likely to have a fling, they are also more likely to keep it secret from their groom.
John Sewell of OnePoll.com said: "These results are pretty worrying.
"Handcuffing your best mate to a lamppost is one thing, but over-stepping the mark and sleeping with or kissing someone else really isn't on.
"I just wonder how many married Brits are blissfully unaware of the debacles which might have gone on the night before their wedding."
Although they are less likely to have a stag night affair, men get up to more mischievous antics than women do on their hen nights, the research showed.
Just over one in ten men woke up on a train or a ferry the morning after their stag do with "no idea" where they were or where they were going, while a further one in ten awoke with their hands chained to a lamppost.