The lucky and maybe somewhat unlikely lady that has got Niall all of a flutter just so happens to be Irish TV presenter Christine Bleakley.
She might be engaged to footballer Frank Lampard, but this is merely a fly in the ointment for Niall, who was spotted chatting up the Dancing On Ice presenter at Sony's Brits after party.
Celebrating their win at the rather swanky Mayfair Arts Club, Niall declared his undying love for 33 year-old Christine, telling The Mirror: "I'm in love. Christine is amazing, so amazing. I love her!
"Seriously, she is my NBF, my new best friend - she is utterly incredible. I also think she's gorgeous.. I like the older woman."
With a 15 year age gap between her and Niall, Christine would have earnt herself the One Direction Cougar crown if they'd hooked up, but it sounds like it just wasn't to be.
Despite Niall's best efforts (which included telling her favourite jokes and a casual arm draped round her shoulder), she was impervious to his Irish charms, leaving him to party the night away with the rest of the One Direction lads instead.
He wasn't the only one on the pull though. Probably a bit freaked out that Niall was chatting up a lady older than Caroline, Harry worked the room and was even seen getting cosy with 56 year-old Jo Wood.
We're all for cougars, but we're not sure we can wait until we're 50 to bag ourselves a boyband member.
What do you think about the trend for boybands going for the older ladies? And what do you think about Niall and Christine, would you like them to get together?