He’s the strong man in two blockbuster film franchises.

But Vin Diesel is a softie off screen and on Friday the hunky star posted a cute snap of himself hugging his little boy, Vincent, on Facebook.

The four-year-old looked totally blissed out as he cuddled up to his father’s bald head. And Vin Diesel looked pretty happy, too.

Touching moment: Screen tough guy Vin Diesel showed off his soft side as he hugged his four-year-old son Vincent in a Facebook snap he shared on Friday

Little Vincent was wearing a bright red T-shirt that popped out against the bright blue sky and he had a matching red transfer of a vicious-looking fish on his arm, probably to compete with Vin, who often uses fake tattoos for his roles.

The hunk posted the picture the day after he took the boy to celebrity hairdresser Giuseppe Franco’s salon in Beverly Hills for a hair cut – not something he famously bald Diesel is ever going to need.

With a bit of encouragement from his dad, Vincent gave Giuseppe a high five.

Father and son thing: Vin Diesel took his little boy for a hair cut at celebrity hairdresser Giuseppe Franco’s salon in Beverly Hills on Thursday

Diesel’s pumped up arms were visible in his black short-sleeved T-shirt as he carried his lad. He also donned blue distressed jeans and scuffed up light brown boots.

His son wore a white T-shirt with an anchor on the front, blue jeans and red sneakers.

Vin also has a six-year-old daughter, Hania, with his girlfriend, 30-year-old Mexican model Paloma Jimenez. The couple have been dating for six years.

He couldn’t be any cuter: Little Vincent gave Giuseppe a high five

The family are rarely seen out together as the star likes to keep his private life just that.

But the beautiful brunette and their adorable children were on hand last August when Vin was honoured with his own star on the Hollywood Walk of Fame.

His parents, Delora and Irving, were also in town for their son’s big day.

Family affair: Diesel likes to keep his private life private but his partner, model Paloma Jimenez, and their children, Vincent and Hania, six, were on hand when he got a star on the Hollywood Walk of Fame last August

The same month, Paloma walked the red carpet with her beau for the premiere of Riddick, the latest in the Chronicles Of Riddick franchise.

Vin is presently finishing up the seventh installment in the blockbuster Fast & Furious franchise after the death of co-star in a car accident last November but the film in doubt.

Red hot: The 30-year-old Mexican model sizzled in a black dress as she stood next to her beau at the LA premiere of Riddick last summer