The former Governor of California’s son, 18-year-old Joseph Baena was spotted out in Malibu, California, on Thursday, flashing a smile while looking super strong and baring more of a resemblance to his fatherthan ever.

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Joeseph is looking so grown up!

Schwarzenegger fathered his son with his former housekeeper, Mildred Baena. The action star has four additional children with ex-wife, Maria Shriver – 26-year-old Katherine, 24-year-old Christina, 22-year-old Patrick, and 18-year-old Christopher.