The brother of One Direction star Niall Horan has revealed that the pop group sometimes look on Twitter for potential girlfriends.

The private lives of the popular boyband are often keen tabloid fodder and potential girlfriends are a hot topic.

Greg Horan has opened up on his brother's love life, revealing that the 'One Thing' sometimes starts following ladies to suss them out. He said:

"[One Direction] test girls out to make sure they are trustworthy. [Niall] will follow you on Twitter for a while and suss you out, make sure you’re genuine and have you out – then go for it! So watch what you’re saying on Twitter. Make sure you're coming across as genuine."

Horan added: "It's not full on straight away. He'll maybe go for coffee. They are all quite innocent in their own way but what teenage lad does not love the ladies."