Patrick Schwarzenegger, yes–son of Arnold, was snapped shirtless whilst leaving an L.A. yoga studio with mom Maria Shriver over the weekend. The 17-year-old’s physique is no where near his father’s (in his prime), but you do see where he gets it.
Daily Mail reports:
The Governor of California’s son did not achieve his muscles through body-building like Arnold though. His strong, lean physique is the result of yoga, while Arnold famously bulked up through body building.
via Tabloid Prodigy » Blog Archive » This is obviously Arnold Schwarzenegger’s shirtless son.
Slinking Toward Retirement 
didn’t even know Schwarzenegger had a son 😛