Arnold Schwarzenegger’s son Patrick shares fun snaps and very cheeky message as he marks Terminator star’s 77th birthday

Arnold Schwarzenegger turned 77 on Tuesday and his eldest son Patrick shared a cheeky message with his father.

The Terminator star, who has long been in a relationship with Heather Milligan, 49, was praised by Patrick, 30, who shared an adorable throwback photo of the pair on Instagram.

In the photo, captioned “Happy birthday pops,” Patrick, who looked about seven years old, posed with his father in a gold photo frame.

He also shared a funny snap of the actor posing in a shirt with his image on it, with the hilarious caption: ‘I love you almost as much as you love yourself!’

Arnold shares Patrick, Katherine, 34, Christina, 31, and Christopher, 26, with his ex-wife Maria Shriver.

He is also the father of a son, Joseph Baena, 26, from his affair with former housekeeper Mildred Baena.

Last month, Arnold paid tribute to his former rival Sylvester Stallone, in honor of his 78th birthday.

The Rocky star, who wished his “amazing daughter” Sistine a happy 26th birthday late last month, was called a “champion” by the 76-year-old Terminator actor in a post on his Instagram page.

Alongside three photos of the couple taken over the years, Arnold wrote, “Happy birthday my friend @officialslystallone.”

“You are a champion and a legend. You inspire me and billions of people around the world,” he concluded.

In one of the photos, the two stood side by side as they worked on hollowing out the pumpkins that had been set out for them.

A second photo of the two stars was taken years earlier, when they both wore Planet Hollywood T-shirts.

He also added an additional photo showing them posing for a photo outside as others join in.

He also shared a funny snap of the actor posing in a shirt with his image on it, with the hilarious caption: ‘I love you almost as much as you love yourself!’

Arnold shares Patrick, Katherine, 34, Christina, 31, and Christopher, 26, with ex-wife Maria Shriver

He is also the father of son Joseph Baena, 26, from his affair with former housekeeper Mildred Baena

Arnold and Sylvester had a longstanding rivalry—now merged—that reportedly began in 1977, when they sat at the same table at the 34th Golden Globe Awards.

Stallone claimed that Schwarzenegger laughed when Rocky lost in several categories at the ceremony, but when the film won for Best Drama, he threw a bouquet of flowers at the star.

Arnold later revealed that he was the one who “started this whole thing… by opening my mouth, saying stupid things and being competitive.”

Decades later, however, the two have a close friendship, with Arnold saying he admires Stallone’s “dedication and passion.” The Rocky star also said the Predator actor has a “big heart.”

But earlier this year in April, the two took part in a joint interview to reflect on the rivalry that has since ended for TMZ Presents: Arnold & Sly: Rivals, Friends, Icons, per People.

Last month, Arnold paid tribute to his former rival Sylvester Stallone as he celebrated his 78th birthday

At one point, Arnold credited his success in the industry to Sylvester, explaining, “There’s no arguing with that: he helped me tremendously in my career, because I had something to strive for.”

Stallone added that when Schwarzenegger “came along, I thought, finally something to motivate me. Because he is, dare I say, a competitor, a threat, whatever word you want to use.”

‘When I saw him, I thought, boom, two alphas. We’d walk into a party and stare at each other for a few seconds and then be like, “I’ve got to get this guy. He hasn’t done anything wrong, but he’s going to.”‘