Bruce’s wife, model and fashion designer Emma Heming, tweeted the tender moment between the newborn and her proud father, whilst the family were holidaying in Budapest.
"A beautiful day in Budapest with the loves of my life," Emma wrote on Twitter.
"Daddy and Mabel cracking each other up."
Mabel was born on the 1st of April this year and is Bruce and Emma's first child together after a three-year marriage.
The newborn is the half-sister of Rumer, Scout and Tallulah from Bruce's first marriage to actress Demi Moore.