One Direction frontman Harry Styles added fuel to rumors that he may be bisexual this week, encouraging fellow bandmate Niall Horan during an interview with The Sun to have an open mind about having sex with men.

"Don't knock it till you try it," he said, implying that the gender of his romantic partner wasn't important for the second time in as many weeks.

Harry's excellent advice was dispensed when The Sun's interviewer probed the group's only two single members, Niall and Harry, about their love lives. The boys reportedly joked that Niall sleeps with a different celebrity on every new trip, to which the interviewer suggested his next celebrity conquest should be a man.

That's when Harry chimed in — "Don't knock it till you try it" — reportedly "touching Niall on the knee." (Perhaps they could kill two birds with one stone and just date each other?)

Styles first addressed his rumored bisexuality last year in an interview with GQ, saying he was "pretty sure" he wasn't bisexual. Earlier this month, it became a hot topic again when he revealed in another interview that the gender of his romantic partner is "not that important."