Credit: ABC/Richard Cartwright Photo: Castle Smiles in His Wheelchair on Castle Season 5, Episode 19, “The Lives of Others”

In a matter of days, loyal Castle fans will finally get to watch the show’s highly-anticipated 100th episode, and even though mastermind Andrew Marlowe warned us exclusively that he didn’t want to make the milestone ep too over-the-top, he assured the folks over TVLine that there’s plenty to look forward to.

“There’s a lot of Castle/Beckett fun,” magnificent Marlowe dished. “It does focus on aspects of their relationship, but what we wanted to deliver is something that was classic Castle and Beckett. Something that felt like it could have played in [the] first season, or now. We were looking for something that was really quintessential, and we were really excited to have found it.”

Knowing that a quintessential Caskett moment awaits us on Monday night is like anticipating Christmas all over again!

And separately, Jon Huertas teased that there’s also some lingerie featured in Monday's episode. “It’s not on Esposito this time, but there’s some sexy attire. And there might even be a celebration.”

While we don’t yet know which cute Castle couple will be enjoying Agent Provocateur's finest garments, we’re holding out for some Esplanie romance — and we aren’t the only ones!

Will you be checking out Castle’s 100th this Monday, April 1 at 10 p.m. ET? Tell us below!