Joseph Baena strikes one of his dad Arnold Schwarzenegger's classic bodybuilder poses while shirtless at the beach

Arnold Schwarzenegger's son Joseph Baena, 25, shows off his incredibly muscular physique as he follows in his father's footsteps

Arnold Schwarzenegger's lookalike son Joseph Baena mirrors his famous dad while striking bodybuilder poses at Gold's Gym in Venice Beach

Arnold Schwarzenegger's lookalike son Joseph Baena cracks a joke about being clothed as he's usually flaunting shirtless physique on Instagram