Kaia Gerber and Lewis Pullman are taking their romance to the big screen.
Gerber, 24, and Pullman, 33, were both recently cast opposite Dylan O’Brien in James Morosini’s new erotic thriller, Bulls.
In Bulls, Danny (O’Brien) “books a last-ditch trip to a hedonistic island resort, hoping to come back as someone his girlfriend can finally believe in,” a logline reads. “His lonely escape detonates when a hookup with Ava, a married woman (Gerber), puts him on a collision course with her alpha male husband Marco (Pullman).”
The summary adds, “As Danny is drawn deeper into Ava’s dangerous and intoxicating world of sex, power and psychological games he quickly realizes getting caught by Marco is only the beginning.”
The film, written and directed by 35-year-old Morosini, marks the first time Gerber and Pullman will share the screen.
“I wrote Bulls because it’s the type of film I would cancel my plans to go see in cinemas,” Morosini told Deadline on Friday, May 1. “It’s mischievous, twisty, turn-y, and most of all it’s sexy.”
Gerber, for her part, celebrated the casting news, reposting the Deadline announcement to her Instagram Stories with eight “🥵” emojis. She has been dating Pullman since late 2024.
Lewis Pullman and Kaia Gerber depart from Hotel Excelsior during the 82nd Venice International Film Festival in September 2025. Pascal Le Segretain/Getty Images
“Kaia and Lewis have actually been together for a while now,” a source exclusively told Us Weekly in January 2025. “They started dating in early December [2024]. They kept it under wraps until the news of her and Austin [Butler’s] split came out. Kaia and Austin have been broken up since October.”
The model dated Butler, 34, for three years before going their separate ways in 2024. Gerber later connected with Pullman through mutual friends.
“They run in the same circle and have similar friend groups, and that’s how they were introduced,” the insider told Us at the time. “Kaia likes that this relationship feels low-pressure and that Lewis is a very low-key guy. They have a lot of chemistry and a very easygoing relationship. She’s really happy and feels like she can be herself.”
Kaia Gerber is addressing her blossoming relationship with Lewis Pullman for the first time. Appearing on the Wednesday, October 1, episode of the “Therapuss With Jake Shane” podcast, the actress and model opened up about her new man, admitting, “Definitely a lot is being healed in this relationship.” Host Jake Shane noted that he feels […]
Gerber and Pullman have often kept their relationship, which the Palm Royale actress has called healing, out of the spotlight.
“A lot is being healed in this relationship,” Gerber said on the “Therapuss” podcast in October 2025. “I really feel like if you have the opportunity to date a friend, do it, because it just is so much better. I never wanna fight with my friends, I never wanna be mad at my friends [and] I respect my friends. It just is like a whole other thing, and I think sometimes you forget you like someone when you love them.”
She continued, “If you can date your friends, you should, or date someone that you would be friends with anyways. Don’t just date someone because you’re sexually attracted to them or in lust with them. You should sleep with those people, for sure, but you don’t need to make them your partners.”
