Prince Harry Still Hasn't Asked Prince William to Be His Best Man

Looks like the role of Prince Harry's best man is still up for grabs.

"He hasn't asked me yet, just to clear that up," Prince William told U.K. radio host Roman Kemp on Wednesday when asked whether or not he'd been tapped for the honor, PEOPLE reports. "It could be a sensitive subject."

The Duke of Cambridge's official statement on the matter comes on the heels of reports that the younger prince had already asked his older brother to take on the role. A source told Us Weekly in early December that "Harry has several close guy friends, but there's no way he would ask anyone but William to take on the top job."

The subject of whether or not William would be the man for the job was broached during a discussion of Campaign Against Living Miserably (CALM), a mental health charity aimed at preventing male suicide that recently launched the "Best Man Project" to encourage men be proactive about mental health and show support to their friends in situations other than their weddings. "That's the thing about being a best mate, inevitably one of you is sometimes on an up, while the other is on a down. You're always there for each other and repaying that favor," William said during the discussion.

Considering Harry served as the best man at Will and Kate's wedding in 2011 (and absolutely nailed his speech, complete with hilarious impressions of the bride and groom), it's likely that the elder prince will return the favor come May. That said, technically, there's actually no such thing as a best man in a royal wedding: According to Town and Country, the role is officially referred to as a "supporter," and William actually broke protocol by naming his brother as "best man."

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Though, in fairness, William has joked that he's "TBD" on even attending the wedding in the first place, considering the May 19 nuptials fall on the same day as the FA Cup soccer final. Still as any good brother and maybe-best man would, he's "trying to see" what he can do about the situation.