It looks like it all went on when One Direction appeared on football quiz show 'A League Of Their Own'.
Not only did Niall Horan get his bum out to reveal a 'tattoo' of host James Corden's face, Harry Styles also planted a lip-smacking kiss on the funnyman.
Harry and James got amorous as they re-enacted the 'kiss cam', as seen at many popular US sporting events.
We can't help but think Nick Grimshaw will be a tad jealous to see Harry in a new blossoming bromance.
The One Direction singer was forced to speak out about rumours he was more than just friends with the Radio 1 Breakfast Show host earlier this month.
In an interview with GQ magazine, the curly-haired heartthrob denied internet rumours he was actually bisexual.
"We're not dating, no. We're just friends," he said.
"Bisexual? Me? I don’t think so. I’m pretty sure I’m not," he added.
Harry Styles, Louis Tomlinson and Niall Horan feature in the new series of A League Of Their Own on Sky 1 HD at 9pm on 30 August.