Arnold Schwarzenegger's Secret Son Graduates Middle School

It's graduation day for Arnold Schwarzenegger's secret son.

The 13-year-old boy attends a public middle school near his new home in Bakersfield, California. And he's expected to enter his first year of high school in September.

But there was no sign of Schwarzenegger, the maid, or the love child at the eighth grade graduation. The boy's name was listed in the program but it was never called out from the stage during the ceremony.

Meanwhile, Schwarzenegger continues to work on his relationship with his children with Maria Shriver. He stepped out to grab lunch with his 18-year-old son, Patrick. They were joined by the state security detail that protected the Schwarzenegger family when he was governor.

Patrick tweeted, "Bout to grab an Unami burger which is the best!  Going with a few of the CHP officers that worked with my fam for last 7 years. Cant wait!"