The 47-year-old actor was spotted on a casual coffee date with his girlfriend Sharna Burgess on Wednesday, just three days after his estranged wife was caught all over Machine Gun Kelly in Miami.
The Beverly Hills, 90210 star showed a united front by holding hands with his girlfriend of eight months during their quick caffeine run in Malibu, CA.
Brian Austin Green and the professional dancer looked crazy in love, smiling big and not breaking their grip as they made their way past photographers.
Keeping it low-key, the couple was photographed wearing sweats and plain t-shirts, and instead of toting around Green's three kids with Fox, they were spotted with the sweetest puppy in tow.
It's a different take on public display of affection than what his soon-to-be ex-wife has been doing with her rapper boyfriend.
As Radar reported, 35-year-old Fox had every inch of her limbs all over 31-year-old Machine Gun Kelly on Sunday at the Floyd Mayweather fight.
It's unclear if the duo actually saw the eight round no knockout fight because they were having too much fun in the VIP section.
One week prior, Fox jetted off to Indianapolis with MGK for one of his shows.
She came out as a surprise guest at the request of his fans and lit up a cigarette with her rocker beau.
While Fox continues to frolic with MGK around the globe, Brian Austin Green and Sharna have been playing parents to the estranged couple's three sons -- Noah, 8, Bodhi, 7, and Journey, 4.
It appears the children are already attached to Sharna's hip, despite the fact their dad has only been dating her since January.
Brian Austin Green made sure to capture a sweet moment between his girlfriend and boys during a recent day at the pool.
"Pool days :) ❤️," he captioned the shot. "The best days ❤️," Burgess replied.
While MGk has also met Green and Fox's kids, the Jennifer's Body star has accused her ex of "using" their children to make her look like a bad mom.
Last year, she blasted her ex after he posted a photo with one of their kids on social media.
"Why does Journey have to be in this picture?" she commented on the post. "It's not hard to crop them out. Or choose photos that they aren't in. I had a great Halloween with them yesterday, and yet notice how absent they are from my social media."
Megan ended her rant with one last dig.
"Congratulations, you truly are a remarkable human," she wrote. "Why do you need the internet to echo back to you what should be inexhaustibly evident in the way your children love you?"
Fox filed for divorce one month later after 10 years of marriage.