This year, Niall Horan girlfriend updates have included names of Ellie Goulding, Laura White, Selena Gomez, and Barbara Palvin. Will he soon add the name of Harry Styles' sister, Gemma, to the list?

Gemma is the 23-year-old sister of Styles who received her degree from Sheffield Hallam University. She has been recently linked to 5SOS heartthrob Ashton Irwin. Although the two remained quiet about their status, 5SOS fans gave them the "Gashton" nickname.

This does not stop Styles from worrying about his best pal's love life. After advising Horan to use the famed dating app Tinder, Styles reportedly expressed his interest to be a matchmaker for his sister and Horan. One source of British magazine Heat revealed that Styles couldn't help but notice his sister's alleged crush on Horan.

"Harry thinks Gemma's had a crush on Niall for a while. At first, they were just mates but as they got to know one another recently, they've become more relaxed in each other's company and it seems it's turned into her fancying him," the insider said.

During the One Direction 'Where We Are' world tour in Dublin, Styles invited his father and sister as well as Horan's family. This is reportedly Styles' way of starting his plan to make the two closer.

However, the former boyfriend of Kendall Jenner might want to work harder because as per the source, Horan is unaware yet of Gemma's feelings towards him: "He'll punch her arm and make jokes like they're mates."

Nonetheless, the two are reportedly "in touch all the time."