Rob Lowe shared a glimpse of his shirtless workout routine at 61 while posing with his lookalike son on Tuesday, May 27. John Lowe, 29, looked just like his Brat Pack alum dad in the tongue-in-cheek ...

The actor's son called the photo a "family tradition" of posting "self indulgent" physique shots. Lowe's other son, Matthew, commented that his dad's photo looked "photoshopped." Rob Lowe has revealed ...

Actor Rob Lowe, 61, flaunted his post-gym body in a shirtless photo alongside his son, John Lowe, in an Instagram post. The two are seen flexing their muscles with the caption, “Lowe family tradition: ...