Source: Bang Showbiz NewsFriends are concerned with how quickly Taylor Swift - who is currently romancing Harry Styles - falls in love. The 'Love Story' singer - who has previously enjoyed short romances with Jake Gyllenhaal, John Mayer and Conor Kennedy - is head-over-heels for the One Direction heartthrob despite only starting a relationship with him last month and friends are worried she is moving too fast.A source told Us Weekly magazine: "For now she is totally caught up in love. It's how she is. She doesn't go at a normal pace in these relationships. It's zero to 60 in seconds."Earlier this week, Taylor and Harry enjoyed a romantic mini break with his parents in England's picturesque Lake District and a day out in Bowness-on-Windermere in Cumbria, where they shopped for Christmas presents together for their families.Local eyewitness Claire Dibbs said: "I was hyperventilating, I just never expected to see them. She introduced herself, she was really lovely. She said they were just here for the day and I think they were there with his parents. Taylor said they were leaving soon."Taylor had a lot of bags from Beatrix Potter world - I saw some cuddly toys poking out of the top of the bag. They'd done a lot of shopping. Taylor said she loved the area and said it was really pretty."The One Direction singer, 18, was spotted introducing his new American girlfriend to his sister Gemma on Monday (10.12.12) and the pair couldn't keep their hands of each other.A fellow diner said: "Harry and Taylor were putting spoons on their noses and fooling around with each other and taking photos of each other. After that they were stood talking and Harry kept putting his hand on Taylor's bum."Taylor had her arms around him a lot and they were really close all night."