The singer admitted that she swapped details with the star but backed away once she realised what his intensions were.
She said: ''I met all the boys through 'The X Factor'. Niall and I] got papped together walking out of the studio.
''It wasn't about romance for me. The last thing on my mind at that time was going on a date.''
Amelia revealed that although she like Niall as a friend, she simply isn't a fan of men with blonde tresses.
She told Britain's Now magazine: ''Yeah. Sorry Niall. He's a nice guy, but not my type. I like dark haired boys.''
While many of the band's members - which include Zayn Malik, Louis Tomlinson, Liam Payne and Harry Styles - are considered heartthrobs, she isn't attracted to anyone in the group.
When asked about her feelings towards the only single member, Harry, she denied having dated him.
Amelia said: ''I'm definitely not dating Harry. I don't see the lad. I don't even have the guy's phone number.''