He’s a father to three daughters and a big family man.

And Dwayne ‘The Rock’ Johnson couldn’t resist helping some critically ill children’s wishes come true on Thursday ahead of Christmas.

The Jumanji actor, 46, took to his Instagram to share three sweet videos of himself with the youngsters during a Make-A-Wish day visit to the set of his latest film Hobbs And Shaw.

In one post, Dwayne met Lucy, whose favourite film is Moana – in which he stars in as  the character Maui.

Sweet: Dwayne ‘The Rock’ Johnson couldn’t resist helping some critically ill children’s wishes come true on Thursday ahead of Christmas

The two decided to sing the actor’s song, You’re Welcome, from the popular Disney movie, with the youngster taking centre stage.

At the end, Dwayne sweetly kissed her on the cheek goodbye to which Lucy pretended to pass out.

With The Rock joking: ‘All the girls react like that when I kiss them and then they walk away!’

Clearly touched by Lucy’s visit to set, Dwayne captioned the video with: ‘Best part of fame. I’m a father to three daughters, so this little Lucy just stole my cold black heart right outta my chest.

Moment girl pretends to faint after receiving kiss from The Rock

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Adorable: In one post, Dwayne met Lucy, whose favourite film is Moana – in which he stars in as the character Maui – she pretended to pass out after he kissed her on the cheek

Precious memories: The two decided to sing the actor’s song, You’re Welcome, from the popular Disney movie, with the youngster taking centre stage

‘Her favourite movie is MOANA so we sang until her heart was content. Her reaction at the end when I kiss her cheek is priceless — she blushes, walks away and passes out. Pretty much the scenario every time I kiss girls.

‘Thank you little Lucy for blessing me with your beautiful sweetness. I’m happy to sing with you any day! Stay strong honey and Merry Christmas! #WishGrantingDay #OnSet #HobbsAndShaw.’ (sic)

During the special day, Dwayne also met Cameron and PJ, to which he jokingly bribed them both to say meeting him was the best part of their day.

Reflecting on the videos, he said: ‘Make a Wish Day on set of HOBBS & SHAW. Look at PJ’s face light up like a Christmas tree with a smile when I start talking. Trust me, I don’t ever take these smiles for granted.

Make-A-Wish visit: During the special day, Dwayne also met Cameron and PJ, to which he jokingly bribed them both to say meeting him was the best part of their day

Touched: He wrote on Instagram: ‘These kids have gone thru some tough times man and they’re way stronger than I’ll ever be (and ironically, I’m their hero) and this will always be the best part of my fame.’

‘These kids have gone thru some tough times man and they’re way stronger than I’ll ever be (and ironically, I’m their hero) and this will always be the best part of my fame. I will fish all day long for compliments! #MerryChristmasPJ #StayAwesome #StayStrong.’

He added: ‘Again, these kids have a rough go, but you just can’t stop their shine and mana. I love seeing ‘em light up and have fun. Best part of my job!’

The non-profit Make-A-Wish Foundation was founded in 1980 to help fulfil the wishes of children diagnosed with critical illnesses.

Dwayne, who has been a supporter of Make-A-Wish for years, regularly documents his visits on his social media platforms.

The actor has three daughters – Simone, 17, Jasmine, three and Tiana, eight months.

Dwayne Johnson celebrates daughter Tiana’s 6th month birthday

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Family man: The actor has three daughters – Simone, 17, Jasmine (pictured), three and Tiana, eight months