Leo DiCaprio spotted strolling arm-in-arm with 20-year-old girlfriend

He has long been considered one of Hollywood's most eligible bachelors.

But Leonardo DiCaprio proved he was firmly off the market on Wednesday with a romantic stroll with girlfriend Camila Morrone.

The 43-year-old actor and his 20-year-old squeeze walked arm-in-arm after a breakfast date in West Hollywood, the Daily Mail reports.

Leo kept it low-key in a navy hooded top pulled up over his head, Dodgers baseball cap and shades, which he paired with jeans and white trainers.

His Argentinian model companion meanwhile wore loose-fit distressed black jeans with slip-on heels.

She showcased some cleavage in a scoop-neck white tee, and finished the look in a wide-brimmed hat, letting her brunette tresses flow loose.

The couple weren't afraid of putting on PDA, as she kissed his shoulder before heading into the restaurant. 

Camila, whose stepfather is Hollywood legend Al Pacino, has been dating the Titanic star since the start of the year.

The Oscar-winner is notoriously private about his relationships, but this public outing suggests the two are getting a little more serious.

According to Us Weekly, the duo were originally just 'old family friends', the connection being Camila's mother Lucila Solá dating Leo's pal Pacino. 

Leo's little black book reportedly contains the numbers of the likes of Nina Agdal, Kelly Rohrbach, Blake Lively, Rihanna, Gisele Bündchen, and Bar Refaeli.

Earlier this week, Felicity Huffman defended the environmentalist's expensive travel habits, saying the good he does for the cause greatly outweighs any damage he is doing.