Jenna Dewan is seen with fiancé Steve Kazee after he laughed at her ex Channing Tatum's split with Zoe Kravitz

Jenna Dewan and fiancé Steve Kazee took their kids trick-or-treating in Los Angeles on Thursday evening.

The 43-year-old Step Up actress dressed up as a chocolate chip cookie while her youngest child, four-month-old daughter Rhiannon was dressed as Sesame Street character Cookie Monster.

Jenna and Steve's son Callum, four, wore an orange pterodactyl costume.

For his part, Kazee, 49, wore a black leather motorcycle jacket over an orange pumpkin shirt as they stepped out in Studio City.

It comes after he seemingly laughed at Jenna's ex-husband Channing Tatum's shock split from fiancée Zoe Kravitz this week. 

After news broke about their breakup, Kazee uploaded an extensive text of 'hahas' in capital white letters against a black backdrop.

While fans were quick to assume that he was laughing at Tatum and Kravitz, Kazee clarified he was actually cackling at a video about houseplants.

'A guy can't laugh about a houseplant Tik Tok in today's world I see...' he wrote.

The video was shared to his Instagram Stories hours after the 'haha' post. 'The houseplant in my kitchen watching me put water in the coffee maker...' he wrote in the clip.

He doubled down on his explanation with a photo of his wilted plant. 'See? It's funny because it's relatable. Get a life,' he wrote.

And he even shared video of his water filter beside another dying plant. 'The most damning part,' he wrote.

In addition to Callum and Rhiannon, Jenna also shares 11-year-old daughter Everly with 44-year-old Channing, to whom she was married from 2009-2018. Their divorce was finalized in September.

Multiple sources told People magazine this week that Channing and Zoe, 35, have gone their separate ways one year after getting engaged.

Channing's September 3 Instagram selfie featuring a sleeping Zoe showed no sign of trouble in their romance.

In a caption to his 17 million followers, he shared a gushy sentiment to his then-fiancée.

'This little sweet. She So tired bro. Every time I wondered if she’d break…. She just kept going and going and going. Always on the dig for truth,' the father-of-one wrote.

Discussing her directorial debut Blink Twice, in which he was the lead actor, he added, 'She pour’d every single ounce of her into this film. I’m so proud to stand ten toes down for her, this film and everyone in it. forever.

'Knowing what it took to make it. No one will ever know. Thank you for finding me and seeing me. I got you forever. Me and you back to back against it all. I’ll never blink. Let’s go. #blinktwice.'

Meanwhile, Jenna and Steve happily shared outtakes from Halloween with their kiddos via Instagram.

As a family, they all dressed up as characters from Jurassic Park, posing on top of their family's Jeep Wrangler before editing photos using a Jurassic backdrop.

And sharing images dressed as a park ranger while her baby girl wore a green dinosaur costume, Dewan captioned one post, 'Jurassic girlies.'

A separate post was captioned, 'Welcome to Jurassic Park.'