The rumoured couple were spotted preparing to hit the slopes in Mammoth Lakes, California, and happily posed for pictures with Twitter user Allie Connolly, who was also in the shop.
She later posted the photos with the caption: ''Casually hanging out with Kendall Jenner and Harry Styles. #dying. (sic)''
The posts quickly led to a backlash against Allie from fans of Harry and his band One Direction.
She later wrote: ''lol it's Harry styles from one direction and Kendall Jenner. Their fans are going insane on my Instagram.
''Now I have 14 year olds telling me that I was paid to make this a publicity stunt. Yep, you caught me hahahah.''
She also added: ''Well, I officially hate myself for posting that picture lol.(sic)''
Despite a number of meet-ups - including Harry, 19, jetting from the South of France to London to see Kendall, 18, instead of partying with his bandmates last month - the pair still deny they are dating.
However, Harry charmed Kendall's father, Bruce Jenner, when he met him by impressing him with his knowledge of golf.
A source said: ''When Harry and Bruce met at his Malibu home a couple of weeks ago, Harry charmed his way through the visit by talking about golf. Bruce is very protective when it comes to his daughters.''
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