Arnold Schwarzenegger Shares Birthday Gym Pic With Son, Joseph Baena

It’s been a big week of birthdays for Schwarzenegger. Last week the “Terminator” star wished his son, Christopher, a happy 20th birthday. Christopher is Schwarzenegger’s youngest son from his marriage to Shriver. 

Schwarzenegger shared an adorable throwback photo of his son as a toddler and captioned the picture, “Happy birthday Christopher! You’re a wonderful student, a hilarious and kind soul, and a fantastic son. I’m so proud of you, I love you, and I can’t wait to see what’s next.”