Joseph Baena shows off his muscular biceps as he goes out shopping with his girlfriend on trendy Melrose Ave in Los Angeles.

Arnold Schwarzenegger‘s son showed off his bulging muscles in a white graphic tee, black shorts, and checkered canvas shoes while he walked in WeHo.

Schwarzenegger’s Son Joseph Baena hits the gym with his girlfriend Savannah

The 21-year-old has been getting a lot of buzz lately while he’s been busy transforming his body into a lean-mean-killing-machine as his famous dad did at his age.

Joseph loves to share his tough workouts at the gym with his 90K followers including the killer workout he did before taking his girlfriend out shopping.

Schwarzenneger’s son has built a strong relationship with his dad and even calls him ‘the best training’ partner in the world’ although his half-siblings Patrick Schwarzenneger, Katherine Schwarnzenneger, and Christopher Schwarzenneger are yet to acknowledge him, this according to Page Six.

There’s one thing that can’t be denied about Baena and that’s he’s huge resemblance to Arnold who won Mr. Olympia and Mr. Universe in his early 20’s.

He shared his excitement about his body’s transformation by saying — ‘Always happy to see the GAINZ!!!’.

Joseph Baena Shows Off Buff Bod After Gym Sesh, Looks Just Like Dad!