Many brides choose their oldest or most trusted friend as their maid of honour.
But these shocking confessions prove that they are not always worthy of the title.
Women from around the world took to anonymous confessions website Whisper to tell their most outrageous tales of when they were asked to be maid-of-honour.
According to the Daily Mail, a number of users admitted to sleeping with the groom before the big day - while another said she had been intimate with all five groomsmen.
Another told how she had threatened to ruin her sister's big day by getting too drunk.