Anyway, the latest "normal" person he's been allegedly dating is model Barbara Palvin, who he enjoyed a cinema date with over the weekend.
The One Directioner and the Victoria's Secret model laughed and joked with each other as they watched The Hunger Games: Catching Fire at the Everyman (hur hur) cinema in Belsize Park, north London, but arrived at separate times to try to avoid being seen together.
A source told the Daily Mirror: 'Barbara came in first and was playing on her phone until Niall arrived. He had a security guard with him, and they sat in the front row so nobody could turn around to see them. He kept a baseball cap on and pulled it low, to try to avoid being seen. They clearly wanted to keep a low profile. They were laughing and joking together throughout the film, and both were dressed casually. You could tell they were comfortable in each other's company.
Despite their pained attempts to remain inconspicuous, the 20-year-old Hungarian seemed to confirm their date shortly afterwards on her Twitter page.
In a post to the 20-year-old hunk, the brunette stunner wrote: "Hunger Games buddie." But what does that mean?!!
Niall's date comes shortly after he was linked to British reality star Louise Thompson and former X Factor UK contestant Tamera Foster, but last week he played down reports he was dating the talent show fodder.
He told BANG Showbiz: 'There's no romance on the cards, there. There's nothing in it.'
Apart from the perma-present PR opportunity.