Harry Styles dating Nadine Leopold? One Direction star 'getting more serious' with Victoria's Secret model

One Direction star Harry Styles is reportedly dating Victoria's Secret model Nadine Leopold.

The pair first met back in November through the Austrian model's CAA agent Jeff Azoff, and were pictured on a series of dates before Christmas sparking rumours that they are more than just close friends.

"Harry has been getting more serious with Nadine," a source told Us Weekly.

The insider added that though the two are not exclusive yet, the 20-year-singer and Leopold have been "spending lots of time together."

Styles and Leopold also celebrated her 21st birthday together in Los Angeles.

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Harry's car filled With Balloons for Nadine Leopold's 21st birthday today #harrytsyles #onedirection #balloons #21 #nadineleopold #benz #mercedesbenz
A post shared by @ p.1d.5sos on Jan 7, 2015 at 11:19am PST

"He planned a few activities for her birthday," the source revealed.

Styles, who has a history of dating high-profile celebrities including Taylor Swift and Kendall Jenner might not be ready to settle down yet.

"Harry is having a good time being a young rock star," another source told the website. "You will know he has a girlfriend when he steps out on the red carpet with one. Until then, he's having fun and enjoying life," the source added.