Only THIS father would buy THIS gift for his son!
Arnold Schwarzenegger went all out for his son Joseph Baena's 16th birthday.
We guess money was no object! Nor should it be! Ah-nold is loaded!
In this pic (above) that was just taken a couple days ago, we can't believe how huge he's grown in the past couple of years! Guess when you're the offspring of the "Austrian Oak," this is how big you grow!
The former Mr. Universe bought a complete home gym for his very similar sized son! And, now, with a gym in tow Joseph may soon become a Mr. Universe, too! Just like his old man!
The not-so-secret son, who Arnold announced was definitely his about two years ago, not only has his father's body but also looks quite a lot like him, too!
Joseph lives with his mom Mildred in the city of Bakersfield in California, but has established a relationship with his dad. They have a lot of chats on the phone, and Arnold has even taken him on several trips.
Talking about their father and son relationship, a source said: