The 'What Makes You Beautiful' singer suggested that his newfound sex life is purely down to the success of the boyband.
Styles, 17, told the Daily Star: "If I wasn't in the band I reckon I'd be a virgin."
Meanwhile, fellow band members Niall Horan, Zayn Malik, Liam Payne and Louis Tomlinson agreed with Styles that Tulisa Contostavlos is The X Factor's all-time most attractive judge.
"Tulisa is the best ever. She's much fitter than Cheryl [Cole] or Kelly [Rowland]," Styles added.
> One Direction's Harry Styles: 'I'm in love with Frankie Sandford'
> Caroline Flack embarrassed by Harry Styles drunk kiss
Watch One Direction's 'What Makes You Beautiful' video below: