The One Direction girl magnet spoke out after the Victoria's Secrets model, 18, was hounded off Twitter by envious Directioners.
Fans of the curly-haired heartthrob will no doubt breathe a sigh of relief as it was assumed they were seeing each other following pictures of the two kissing surfacing earlier this week.
But the 18-year-old has said: 'She’s just a friend. She’s working over here...I prefer not to talk about it.’
Emma Ostilly is a model for Victoria's Secret (Picture: Twitter)
After pictures emerged of the pair locking lips during a night out in New Zealand, jealous 1D fans took to their Twitter accounts to post abusive messages to Ostilly.
Emma, who first met Harry during filming for One Direction's Gotta Be You music video, had previously posted a snap of her with the curly-haired singer online, with the caption: 'Dinnnaa with harry styles'.
But after the taunts became too much, Emma deleted her Twitter account to avoid any more abuse.
Some users labelled her a 'b**** whore' who deserved to 'die in a hole', and others even set up Facebook pages called 'Anti Emma Ostilly' and 'I hate Emma Ostilly'.
Styles has also been linked to 19-year-old US singer Lily Halpern in recent weeks.
Earlier in the year he broke up with 32-year-old Xtra Factor presenter Caroline Flack after dating for three months.Opening up about the abuse afterwards, she told The People: 'I suppose they're entitled to their opinions but it was really tough. I learned the hard way. I learned a very difficult lesson but I suppose looking forward it isn't a bad lesson to learn, is it?'
Read more: http://www.metro.co.uk/showbiz/897091-harry-styles-denies-dating-us-model-emma-ostilly#ixzz1t71hj3Lv
