With Beckett (Stana Katic) and Castle (Nathan Fillion) now working together on the LokSat case on ABC's Castle, the second half of season 8 will have a different feeling from the first half.

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Castle and Beckett have some "fun" and "sexy" adventures ahead for the second half of the season, as established by co-showrunners Alexi Hawley and Terence Paul Winter in a recent Hollywood Reporter interview.

The showrunners also teased that the dynamic will "twist" now that Beckett is comfortable working with Castle again.

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"I don't think Beckett could stand someone else close to her dying. Beckett is who she is because her mother was killed back when she was 19 years old and put her on this path she is on now. I don't think she can handle the idea of Castle being harmed," Winter explained. "That's one of the motivations that put her down this path. It was all out of love. Now that we are past that point, we can twist it in some different ways. When people start seeing our episodes we have in the new year they will see the payoff of this new arrangement."

One of the more fun episodes of the second half of the season will come in the form of a Pitch Perfect-style singing scenario.

"We have a very fun episode when we come back in a sort of Pitch Perfect kind of world where we get to see one of our characters do a little singing in an unexpected forum," Hawley said. "It's a really fun episode when we get back. Fans will be sad about the two months off, but we have some delightful stuff when we come back."

As long as Castle and Beckett eventually get back together fully and don't separate again, Castle fans will probably be okay with whatever comes in the second half of the season.

Castle season 8 returns Monday, Feb. 1 at 10 p.m. ET/PT on ABC.

Tags: Castle television ABC