They say they want to live while they're young and tonight One Direction's Harry Styles and Niall Horan put their money where there mouths are on Sky 1's A League Of Their Own.

The boys join host James Corden and his motley crew for an episode of the popular quiz show and certainly didn't mind getting stuck in. Literally, in Harry's case. He puckers up for a smooch with the host on Kiss Cam. Lock your doors James, the particularly diabolical Directioners will be after you...

Our own Mullingar man Niall Horan  takes things a step further, dropping his jocks on national telly so James can slap his face on the young fella's arse. We're guessing this image will be someone's screensaver by the end of the day. Be warned, it's not suitable for young eyes.

Catch Niall and Harry on A League of Their Own tonight from 9pm on Sky 1 and Sky 1 HD.