Shailene Woodley and Theo James are known to have great chemistry on-screen and a great friendship off-screen. While many wish the two were together in real life, could their upcoming movie "Allegiant" cause a breakup between the actor and his real girlfriend Ruth Kearney?

Fans have seen the undeniable chemistry between James and Woodley, which reportedly doesn't go well with Kearney as they have a strong romance in the movie. However, in the upcoming installment of the franchise, the actors' chemistry will apparently be stronger.

James is reportedly facing a probable breakup with his current girlfriend because of the upcoming steamy romance with Woodley, whose legs he apparently admires.

Some reports say that James will be putting his relationship behind with Kearney, mainly due to the intimacy in the scenes between him and his co-star. As referred in the book, the movie will feature certain steamy scenes between the two, which Kearney apparently frowns upon.

Another thing that didn't sit well with Kearney was when her boyfriend talked about his "ideal girl,"which some people thought he was talking about Woodley.

"Let's see... I have a thing for pretty legs," said James. "But most importantly, I like confident women. It's probably because I grew up with four strong women - my mother, grandmother and two sisters."

While Woodley appears to fit the description well at 5 foot 8 tall, Kearney, who is four inches shorter, isn't ruled out.

The actor also admitted that his girl has to have good breath that smells like clay. However, he also admitted that his biggest fears during a relationship is embarrassing himself during sex.

"And when she's too self-obsessed. She should definitely be a good listener and show empathy," added James. "But most importantly, I like confident women. It's probably because I grew up with four strong women - my mother, grandmother and two sisters."

Woodley and James are set to film the third franchise, "Allegiant," which is set to shoot in May with the cast, including Miles Teller.

Producer Todd Lieberman gave a teaser of a very detailed film set, which gives a feel of being in a "whole different world."

"I don't want to promise too much, but I can say that the things that we've talked about have been very cool," said Lieberman according to The Global Dispatch. "There's going to be some really mind-blowing visuals. Those who have read the book know where it goes. It goes into a while different world, and we're really excited to explore that."

This article was originally published on Fashion & Style.