I just had to write this story based on Chloe's reactions all through 'Til Death Do Us Part'. Because it was hilarious having Chloe being jealous of Lucifer spending time with Marcus, who she is so crushing on bad. So, this is my take on how it goes. Expect Lucifer/Marcus and Chloe/Marcus as pairings.

The Wager

Chloe was glaring at her partner. It was a more common reaction for her to have, lately. For...various reasons.

He had picked up the picture she had laid face down on her desk to look at it with a huge grin on his face. "Detective! Why would you put this marvellous photo of mine face down? You don't get to stare at all the pretty with it like that?"

"Maybe that's the point, Lucifer," she replied to that, irritated by his word usage. It was a lot of pretty, after all. It was one of the reasons she was glaring more at him lately.

She had working eyes. And she had seen how cosy Lucifer and Lieutenant Pierce were getting, outside their occasional loud squabbles over food of all things. And yeah, it irritated her. A lot. For...another set of various reasons.

One being her crush on Pierce, which she can't shake. Another being the jealousy she still feels whenever Lucifer takes interest in someone that's not her. Sometimes she felt like she'd never be able to let go of the thing she and Lucifer could have had, but the Lieutenant having come into her life had slowly changed that.

Her jealousy for Lucifer now wasn't anything to do with other women anymore. No, her jealousy was now in the complete opposite direction. She was jealous because he was spending more time with Pierce.

He had blown off drinks with her at The Paddock to go to Lux to drink in private with a man only a few hours earlier he'd had a giant fight with. Marcus would prefer to spend his time with Lucifer, even though she had shared a moment with him.

And that made her blood boil with jealousy. It also made her feel really inadequate. Was it just her that she couldn't keep a guy? First with Dan preferring to work over being with her at home. Then with Lucifer who skipped town and went and got married behind her back as a way of saying no to getting in a relationship with her. And now this. Lucifer was encroaching on the man she now wanted.

And that just wasn't going to happen.

"Too much pretty for you, Detective? You still haven't had sex since the day we met. Not once. How do you live with all that sexual frustration? I mean, I get why The Lieutenant does, but not you."

She blinked at that. "Wait, you and Pierce aren't having sex?"

He blinked back at her and frowned. "No. We'll get there, if I have any say in it, but as of yet, no."

And with that Chloe relaxed slightly.

"Could you just...stay away from him? Your fights are ridiculous and annoying to listen to."

He grinned at her. "No can do! I told you before, Detective, that he stayed because of me. I wasn't lying there. We made a deal which needs a lot of personal time together. Nothing sexual or anything, but it is definitely private."

Damn it, she had thought for days even after Lucifer had first told her that, that it had been the moment she shared with Marcus that made him stay. Maybe she should ask the Lieutenant himself whether it was her or Lucifer...

"Well, okay then. I know you won't stop until you've succeeded in finishing a deal. But, you don't get to complain about him to me. At all, understand?"

He held up his hands and nodded. "Of course, Detective. Only all the salacious details, if any actually happen." He grinned widely at her and she rolled her eyes.

That was it. It was on.

"Lucifer, just so you know...I kind of like Lieutenant Pierce."

His eyes widened at that. 'As in, you want to climb him like a tree, or you want to eat ice cream and girl talk with him?"

She blinked and looked confusedly at him. "Ice cream and girl talk? Really? No, I want to get with him. Since whatever we shared lasted all of one kiss."

He smiled wickedly at her. "And let me guess, Detective, you don't share well?"

She shook her head. "I don't share."

Lucifer laughed at that, his eyes sparkling with humour and desire. Damn him for it.

"Well then, shall we wager on which of us can win the heart of the most unreachable man on the planet."

With that, she held out her hand and together they shook on it.

Maybe making a bet with someone who calls himself the Devil wasn't the best of ideas, but at least this way she had a shot. And, by the sound of it, this one even had Lucifer stumped. Yet another reason to like him.

She'd have to plan when she got home some strategy to win the heart of someone who believes everyone will die on him.