showbiz gossip straight to your inbox with the Daily Star's FREE newsletterArnold Schwarzenegger's son Joseph Baena has flaunted his impressive muscles in a new Instagram post.Posting to the social media site on Friday, the 23-year-old real estate agent showed off his bodybuilder physique in two images taken from inside Gold's Gym in Venice Beach in California.Striking an undeniable resemblance to his father as a young man, the offspring of the Terminator star and Mildred Baena put his large muscles on display whilst wearing a pair of tiny blue drawstring shorts and posing topless.He also wore a gold chain and a watch while showing off his ripped muscles and washboard abs.Joseph captioned the post: "Friyay legs!
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