A$AP Rocky and Rihanna's sons don't know their music.

The couple are parents to RZA, three, and two-year-old Riot, and despite their high-profile careers, the boys don't yet ask to listen to their songs, though their dad thinks in a "year or two" they'll be keen to get involved with their work.

Rocky told America's GQ magazine: "My kids are still in the stage where they like childish, musical, kiddie kind of sounds. Remember, keep in mind, they're only like three and two, so they don't even understand stuff that I'm doing yet. They didn't really develop the understanding for it yet.

"Give it like a year or two, they'll be up in my business. 'Dad, what you doing?' But right now, they're kind of too young to understand that...

"They don't request their parents' music. They can't even develop the concept of having famous parents at this moment. They don't have a consciousness of self at the moment, or knowledge itself.

"Their little brains are still developing, so whenever they're ready, they can listen to my music. I need them to know Dad is a rockstar, Mommy's a rockstar. It's okay."

Rihanna and Rocky are expecting their third child and they have both hinted that they are having a girl - and the 36-year-old rapper admitted his partner's pregnancy has been "so different" this time around.

He said: "Well, I would say this experience and this pregnancy has been so different in comparison to the first two prior. So, nothing's ever the same. Each experience is always just different in its own right. And it's no different with this one."

The Praise the Lord hitmaker loves being a dad and the ways fatherhood has changed him.

Asked the highlight of fatherhood, he said: "I think the evolution of who I am as a person, as an individual, as a dad, an artist, as far as being a parent at that time. Just quite f****** interesting if you ask me, to see in front of everybody's eyes how much I've been yearning to be a dad, and a loving dad.

"So, I got nothing but love to give to these little ones. And as you can see, that's what occupies a lot of my heart capacity, is my family."

Rocky revealed he and Rihanna are already saving "all" of their clothes to hand down to their children one day.

Asked if there's anything in particular from their wardrobes they will pass onto their kids, he said: "All of them. No bull****. At this point, it's not even about being a hoarder or anything. It's like being a collector.

"There's things that you got to have in the archive, things that you wear in the present day, things that you're saving for later.

"So, the kids' pieces are essentially those archival, save-for-later pieces. And when I'm too old to do anything with them, I'm definitely giving to the young lads."