Like father, like son! Arnold Schwarzenegger's love child Joseph Baena bulks up like his old man as he turns 16
The love child of Arnold Schwarzenegger and his former maid is looking more and more like his muscly father everyday, having shed the puppy fat and bulked up whilst training for his high school swim team.
Joseph Baena was seen leaving his school swimming pool on Tuesday, showing off his bulging biceps and toned torso in a Batman vest as he walked with his mother Mildred, the day before his 16th birthday
And although he shares the Latino look of his mother, Joseph seems to have inherited the chiseled jawline of his action star father.
Hench: Joseph Baena has worked off the puppy fat to become super lean and muscly like his dad Arnold Schwarzenegger
Joseph left his training session - where he is specialising in the butterfly stroke for his high school team - in high spirits and may well have been looking forward to his father's present, who has reportedly bought his son a home gym, according to TMZ.
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His half-brother Christopher - who he used to share a similar body type with - enjoyed his sweet sixteen just five days before on September 27th,
But now 16-year old Joseph looks more like his other half-brother Patrick, both of whom look just like his father during his teens.
Following in his footsteps: A competitive swimmer, Joseph is slowly morphing into his father known for his bodybuilder's physique
Love child: Joseph was conceived after his mother Mildred had an affair with Arnold when she worked for him and Maria Shriver as a maid
Defined: Working out has helped Joseph shed the weight and get a more streamline jawline like his father
However, Arnie may not be too happy with his son's choice of shirt, seeing as he played the Iceman villain to George Clooney's Bruce Wayne in Batman And Robin.
And now back in the movies, Arnold shows he hasn't lost his action man status, with The Expendables 3 in production, and Escape Plan with Sylvester Stallone out next month.
But the world may never have known the Austrian Oak as he is today, if the original choice for The Terminator took the role.
Deep V: The 15-year old is specialising in the butterfly stroke at his high school
Still an action man: Since leaving office, Schwarzenegger has gone back to acting, starring in The Last Stand The Expendables 2 and 3 with Sylvester Stallone
His other boys: Arnold has two sons Patrick and Christopher with ex-wife Maria Shriver
According to Schwarzenegger, O. J. Simpson was the first pick for the robotic role, and appeared in the original artwork mocked up by James Cameron.
Speaking to Empire magazine, Arnold said: 'O. J. Simpson was on the original painting of The Terminator that Jim Cameron did, that I saw.
I went to do the interview for Reese, for the good guy, and I had lunch with Jim Cameron and I said "Let me tell you right now. Whoever's going to play The Terminator - I know it's O. J. now - has to be able to take the guns apart blindfolded. This guy's a machine."
'And at the end of lunch Cameron said "Why don't you play The Terminator?" I said, "He only has 27 lines of dialogue! Give it to Lou Ferrigno, you idiot!" 
Sister: Arnold has a daughter, Katherine pictured with her mother Maria in July
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