The company surveyed 1,000 British moms, finding that “7.8% admitted to lying over the biological lineage of their children.”

“We were shocked,” a rep for Topp Morning Casino said on their website of the poll results.

“This means there are potentially 2.1 million couples in the UK where the father isn’t the biological one.”

An identical study of American moms has not been conducted, but frequent polls about paternal identity have taken place over the years, with varying results.