Rob Lowe and Son John Owen Show Off Their Muscles in Shirtless Gym Selfie: 'Family Tradition'

Rob Lowe is instilling a cardinal family contented successful his son.

On Tuesday, May 27, nan Parks and Recreation alum, 61, shared a shirtless gym selfie on Instagram alongside his 29-year-old boy John Owen. Lowe could beryllium seen wearing gym shorts and nary shoes, staring into nan camera while he flexed his arms.

His boy John Owen posed connected nan different broadside of him, wearing ray bluish jeans, achromatic sneakers and a shot cap. He flexed his arms adjacent to his dad, besides staring consecutive into nan camera.

"Lowe family tradition: aforesaid indulgent shirtless gym photos," nan prima joked successful his caption.

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In nan comments, Lowe's older boy Matthew, 32, poked nosy astatine his brother, writing, "Why does it look for illustration you photoshopped your caput on @johnnylowe."

Lowe shares his 2 sons pinch his longtime woman Sheryl Berkoff.

Back successful March, Lowe said with AARP The Magazine for their April/May screen communicative and was asked if he's fresh to go a grandparent. At nan time, Lowe shared that he couldn't wait.

"I person a astir apt overly inappropriate liking successful my sons' emotion lives — because I'm angling for grandkids," Lowe told nan outlet. "It amended happen!"

In September, Lowe recalled to PEOPLE nan “brutal” acquisition of flying with Matthew and wife Sheryl to Duke University to help him move successful for his freshman year of college.

"It brought up a batch of stuff," he said during an question and reply for his August PEOPLE screen story. "And I thought, why is this affecting maine truthful deeply? Because Sheryl was, I mean, not unaffected, but she wasn't me.” 

“I mean, I was for illustration a puddle. I had to deterioration acheronian glasses connected nan level because tears were streaming down my [face] nan full time,” Lowe admitted. “I couldn't look astatine him sitting successful his chair, successful his small spot pinch a small book bag. I couldn't do it... It's triggering.”

“I was a wreck…I've realized it's very, very, very communal because group talk to maine astir it now each nan time,” he added.