Jennifer Lawrence and Michael Fassbender will likely carry the story in the upcoming “X-Men: Apocalypse,” according to The Hollywood Reporter.

A source told the publication the production is planning a big Magneto and Mystique romance story in “Apocalypse.” The source has allegedly seen the script and claims the studio is using Fassbender and Lawrence’s “star power” to bring in big numbers at the box office.

“Apocalypse” writer Simon Kinberg spoke to Collider back in October about the upcoming franchise installment. Kinberg confirmed Mystique would be the center of the film and her relationship with both Magneto and Professor X is a major part of the story.

“Part of what’s really interesting about Mystique’s character is that she is, in some ways, the child of both Erik and Charles,” Kinberg told Collider. “She grew up with Charles and then she sort of became a woman with Erik, so her being the cross-pollination, if you will, of those two philosophies and those two men is something we can explore in the movie too.”

However, Kinberg also mentioned Mystique’s relationship with Beast is another aspect the film will explore in “Apocalypse,” which is set in the 1980s.

 “I think that the friendship between Erik and Charles, which has always been so integral to the franchise, is something we’re continuing to explore and hopefully deepen with Apocalypse. And the relationship between Beast and Mystique is a really interesting one that we didn’t have a lot of time to explore in Days of Future Past, so we’ll have an opportunity to do more of that in Apocalypse.”

“X-Men: Apocalypse” is slated to hit theaters on May 18, 2016.