After ending the highly publicized relationship with Kendall Jenner recently, Harry Styles is now back to his old ways of dating someone older than his age -- the One Direction heartthrob was spotted having a drunken night out with The Kills' Alison Mosshart.

Styles is clearly used to the age gap: the 20-year-old singer reportedly got intimate with the Indie rock singer, 35, while they were partying at The Box nightclub during London Fashion Week last month. "They were both very touchy feely in a booth and both pretty drunk," said an eyewitness. "It was Harry who made the move."

"They were having a great time together... with a lot of PDA," the source continued.

Although the pair has been seeing each other for quite some time after meeting through their mutual friends Kate Moss and Jamie Hince, their night out was the first time they had actually gotten close and personal. "At one point he was stroking her hair as she lay her head on the table," the source added.

A few days later, the Midnight Memories hitmaker and the blonde singer were spotted together again at Burberry's fashion show, where they sat side-by-side on the front row. Styles was also seen enjoying having conversation with Mosshart, as well as Tinie Tempah and Mario Testino.

In the past, cougar-interested Harry Styles has been romantically linked with several older women, including Caroline Flack, 34, and DJ Lucy Horobin, 33.