Ben Affleck models his muscled physique in a Kung Fu t-shirt as he signs a Mallrats poster for a fan

He has been seen in the throes of romantic passion with his superstar on-again flame just this week.

And on Friday, Ben Affleck was seen out solo in Los Angeles, California, wearing a gray Shaolin kung fu T-shirt.

The double Oscar winner, 48, modeled his impressive arms in the heather gray shirt, which was decorated with a dragon, snake, swan and tiger in the center.

On Friday: Ben Affleck was seen out solo in Los Angeles, wearing a gray Shaolin kung fu T-shirt and disposable face covering 

Affleck was seen walking down the street in a black disposable face mask, which covered his stubbly face. 

Ben was also spotted without his mask as he stood next to his large black SUV.

He wore black jeans, along with weathered white tennis shoes and black socks.

Affleck oozed confidence as he arrived to pick up son Samuel from swimming practice. 

His ride: Ben was also spotted without his mask as he stood next to his large black SUV

Guns out: The double Oscar winner modeled his impressive arms in the heather gray shirt, which was decorated with a dragon, snake, swan and tiger in the center

Cool guy: Affleck looked confident as he arrived to pick up son Samuel from swimming practice

 His youngest child with ex Jennifer Garner appeared straight from the water, rocking long, wet locks and carrying a warm jacket while dad held his backpack.

The doting father encountered a fan on the way, stopping to sign a poster from his 1995 Kevin Smith movie Mallrats. 

The Argo star has been attracting a flurry of attention recently, as he has reignited his relationship with one Jennifer Lopez. 

Previously, the starry couple were engaged to be married back in 2004.

Laid back: He wore black jeans, along with weathered white tennis shoes and black socks

At one point: Ben stopped to greet a fan, and sign a poster from his Kevin Smith movie Mallrats

Lookin’ good: The Argo star has been attracting a flurry of attention recently, as he has reignited his relationship with one Jennifer Lopez

Water world: His youngest child with ex Jennifer Garner appeared straight from the water, rocking long, wet locks and carrying a warm jacket while dad held his backpack

But just this past Sunday, Ben and Jen, sometimes referred to by their pet name Bennifer, were seen all over each other during a family dinner at celebrity hotspot Nobu in Malibu.

And things indeed seem to be getting serious between the pair once again, as Affleck has started to bond with Jlo’s twins Emme and Max from her previous relationship with Marc Anthony.

Ben, for his part, shares three children with a different Jen – Jennifer Garner to be exact, to whom he was wed from 2005 until 2018.

Seen here in July 2003 at the Gigli premiere: Previously, the starry couple were engaged to be married back in 2004