Aquaman congratulated his stepdaughter, Catwoman, on Instagram in a post published Monday night.

DC Extended Universe: Every Upcoming Movie 26 IMAGES

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Jason Momoa married Zoë Kravitz's mom in 2017 after over a decade of dating and raising their own two children. Now, the Aquaman actor is thrilled his stepdaughter is a member of his DC family as well."I’m so proud of u zozo bear," Momoa wrote. "On and off screen OHANA. DC WB ohana Lola and Wolfies big sister is CAT WOMAN Unbelievable so freaking stoked. Your going to have so much fun Aloha P bear"The accompanied image Momoa added to the post was previously published on Kravitz's Instagram account on October 2. Kravitz became the second officially announced cast member for the upcoming Batman movie, in which Robert Pattinson is confirmed to play the titular hero. Rumored members of the cast include Jeffrey Wright as Commissioner Gordon and Jonah Hill as either Riddler or Penguin Andy Serkis has also been rumored to play a non-motion capture part after the actor worked with The Batman filmmaker Matt Reeves on the last two Planet of the Apes movies.Don't get excited about Kravitz and Momoa sharing the screen together in costume though, as The Batman reportedly takes place in the 90s. IGN rounded up that and all other Batman movie news right here. DC currently has Joker in theaters now and will release Birds of Prey and Wonder Woman 1984 throughout 2020. The Batman is set to come out on June 25, 2021, which is less than two months before The Suicide Squad opens on August 6, 2021. It won't be until 2022 when Momoa returns for a sequel to Aquaman.In the past year, Kravitz starred in Big Little Lies, Spider-Man: Into the Spider-Verse and Fantastic Beasts: The Crimes of Grindelwald while Momoa starred in Aquaman -- the highest-grossing DC movie ever -- and reprised the role for The LEGO Movie 2.Watch this video to see Christian Bale's thoughts on the new Batman.

Petey Oneto is a freelance writer for IGN who didn't realize he wanted a Catwoman-Aquaman movie until now.