Dwayne Johnson has a "great chemistry" with Lauren Hashian.
The 'Baywatch' star - who has 11-month-old daughter Jasmine with the 32-year-old singer - says it is "enlightening" watching his partner be a mother to their little girl.
He said: "We've got a great chemistry and a great flow. And I think being busy, as busy as I am, there's that old adage: You want something done, give it to a busy person. I think being busy for me really helps in parental duties - being in a rhythm of go all day and being able to come home and do the bath time, the diaper duty, the feeding time.
"Watching Lauren be a mom has been one of the most enlightening things I've ever seen. As a man, you see your lady, your partner, your woman, your one, you see them in a certain light, and then when they become Mom, it's a whole other perspective that if you open your eyes wide enough, it's like a kaleidoscope."
The couple enjoy sharing their parental duties but the 44-year-old actor particularly likes bath time with his little girl.
He added: "My other favourite time is bath time with Jasmine. It's my job and I love filling up the baby tub and I get her toys, making everything right.
"And then I say my thing, 'All right, Daddy's ready!' And in she comes and she's kicking and she's so happy. I own being the daddy. I love it."
Meanwhile, Dwayne - who also has 15-year-old Simone with his ex-wife Dany Garcia - opened up about becoming a father at a young age.
He shared to People magazine: "One of the best things that has happened is the fact that I became a dad at 29, very young and at the height of my wrestling career. I was always on the road, splitting my time and then becoming a dad later in life too as well.
"It's really been this awesome, interesting, fascinating balance between an amazing, beautiful 15-year-old who teaches me, to her amazing, beautiful sister, an 11-month-old baby. You just hope that you take the lessons that you learned in life and you can apply them properly. I think I'm a good dad."
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