We found out today that Christopher Schwarzenegger, the 13-year old son of Maria Shriver and Arnold Schwarzenegger, was involved in a serious boogie boarding accident Sunday and has been in ICU since.

TMZ is reporting that Maria Shriver has filed for a divorce from Arnold Schwarzenegger, citing “irreconcilable differences” as the reason for the split.

Mildred Baena, Arnold Schwarzenegger‘s mistress told her story to Hello! magazine. She said she herself had no idea her son was Arnold’s until the now 13-year old started resembling the ex-California Governor.

“It was as Joseph grew and I started to see the resemblance that I wondered — but it became more apparent as time went on. I knew Arnold was the father, and maybe as Joseph got older and began to look like him, [Arnold] wondered. But he never said anything to me.”

Unfortunately it wasn’t only Schwarzenegger and Baena that had such suspicions.  Arnold’s wife, Maria Shriver, would hint to Baena that she also noticed the similarities between Joseph and her husband.

“She would say things like, ‘I’m here if you need to talk,'” Baena remembers. “Finally, she asked point blank. Maria asked me directly if Joseph was Arnold’s son, and I just broke down. I dropped to my knees and I was crying, saying that yes he was and I was so sorry.”

Baena continued: “She was so strong. She cried with me and told me to get off my knees. We held each other and I told her it wasn’t Arnie’s fault, that it takes two.”

Watch the video below for the latest:

Arnold Schwarzenegger’s mistress has been identified as Mildred Patricia “Patty” Baena.