That night, Emily was angrily pacing her hotel room thinking of everything Derek had said to her. No, shouted at her. She couldn't stand not having the trust of her partner. She didn't know if this new acting unit chief bullshit had gone to his head, or if he was still mad at her or what the deal was. But she wasn't going to put up with it.

She stomped down to his hotel room and gave a couple of knocks on the door.

Derek looked exhausted when he opened the door. His head fell back in a sigh. "You don't even have to say it. I'm sorry I had that conversation in front of everyone. We should've spoken privately."

"You think I'm mad because it was embarrassing in front of the rest of the team?" Emily was incredulous. "I don't care if it was behind closed doors or if it was in front of the fucking Prince of Wales! I'm mad that's what you think of me. We're supposed to trust each other and you were acting like it's my first week on the job."

"I do trust you, Emily. It's not a trust issue."

"That what kind of issue is it? Because it feels an awful lot like you don't trust me."

"I was scared for you! I was scared of losing you and it being my fault and having to live with that for the rest of my life. We should've split up three and three instead of two and four. I shouldn't have been so confident we had predicted the next victim correctly. All decisions I fucked up. I was overly confident and I was wrong and it almost cost me majorly."

"Hey, Derek, you're putting entirely too much pressure on yourself." Emily's voice had softened. She could see the weight of the world on his shoulders. "You're doing a really excellent job."

"I'm doing a terrible job."

"You're not! I could've done without being ripped for my decision-making. But other than that," Emily tried to kid.

Emily stepped forward and gently rubbed her hands down his tense shoulders and arms.

"Don't be so hard on yourself. I've been impressed with you this last week and a half," she said.

Derek could feel all of his insecurities showing. Everything he had been trying so hard to hide from the the team all week.

"I just want to know this promotion doesn't mean I'm losing you as a partner," Emily said with a smile. She wrapped him in a hug, her arms enveloping his shoulders then sliding up to his neck.

Derek eventually relented and returned her hug. His arms circled he waist and held her tightly to him. God it felt good to have her pressed to him again.

"I was scared of losing you," Derek practically whispered.

Emily tightened her hold on him. "Well you didn't. You don't have to spend another minute worrying about it."

"I've missed you," Derek said. He turned his head towards hers, their noses nearly touching with the embrace they were in.

"I've missed you, too."

Derek closed the already tiny gap and kissed her, their first kiss in months. The tension immediately started to leave his body. He felt lighter than he'd felt since they arrived on the case. She still wasn't completely at ease though and he could tell.

"I thought you were dating Claire?" Emily asked.

"No. That ended about a month ago."

"Oh." A smile crept over her face. "Oh!" Then her lips were back on his, her body relaxed, relieved to know he wouldn't do something like that.

Derek's hands slid up her back then back down to her waist, caressing her while he kissed her, slowly and comfortingly.

"I'm sorry we fought," Derek said.

"Which time?" Emily asked lightheartedly before leaning right back into his lips.

"Both times."

"Me too. I'm sorry we wasted so much time not doing this." Her words were breathy against his mouth.

There it was. Another one of those times when Derek put the tiniest ounce of vulnerability out there and she didn't return it.

But right now, he didn't care. It had been too long for them and he had to have her.

When he started escalating things, Emily got a little nervous. "On a case? We said never on a case."

"The case is closed, Emily."

"Yeah…" She sounded unconvinced.

"It's up to you." Derek leaned in to press a couple of kisses to her neck. He continued, a kiss in between each softly spoken word. "Whatever you want."

Emily paused a few beats before finally answering him. "I want you."

She didn't have to say another word. His lips once again found hers. They were extra eager after such a long time apart.

Emily had already changed into something more comfortable back in her room before she stormed over, so Derek didn't have much in his way. He had her sweatshirt off in no time, and she hadn't been wearing a bra, a fact that had a noticeable effect on him.

Derek backed her into a wall and toyed with the waistbands of her cotton shorts and panties. He briefly felt the tiniest little satin bow before moving his fingers lower.

Had Emily been lying down or even just sitting, her legs would have fallen open to his touch. Instead, she stood backed into the wall, only one leg able to move wide to give him the access she craved.

She clung to his shoulders, the only thing she really could cling to, and his fingers dipped in to her soaking center. Emily whimpered at his touch, so deprived of it for months. Derek's fingers very gently circled her clit and she writhed against the wall. His other hand trailed down her backside, helping to hold her up by his hand on her ass.

When Emily started gasping at his skilled fingering, he pressed his lips to hers then gruffly reminded her she needed to keep quiet.

Emily desperately wanted to strip his clothes off of him and feel his muscled body, but she knew she couldn't get his shirt off without briefly missing his fingers inside her.

Derek could tell she was close. She was holding onto his shoulders for life, subtly rolling her hips against him, and her eyes had fallen shut. When he could tell she was about there was when he let up. He used less pressure and slowed his small circles he was drawing. She whined, craving more from him. It's not that Derek wanted to deny her. He just liked for it to last.

Emily opened her eyes, their faces an inch apart. Derek stared into her eyes and wondered if she would ask for it. If she would ask for him to make her come right now. But that wasn't really Emily's style.

When she could tell he wasn't going to speed back up again, she changed course. She stripped Derek's shirt off and ran her hands down his chest, her fingernails dragging across his nipples. Then she started moving them towards the bed, not having to do much pushing to get Derek to walk that way. She undid his belt buckle confidently. Unlike Emily, Derek hadn't gotten a chance to change out of his clothes from the day yet. He was glad to let her do it. She slid his pants and briefs down then looked into his eyes, always so self-assured.

Derek kicked his shoes off and then his pants. He sat back on the bed eager for what was to come.

Emily kept her eyes on his as she slid her panties down and gingerly stepped out of them. He would never get tired of watching her strip down for him.

Next she was climbing on top of him, pressing his back into the mattress as she settled her naked body against his. He loved the feel of her heavy breasts, her nipples dragging across his chest.

Emily placed a kiss to the side of his face, then one by his ear, then one down his jaw. He slid his hands over her perfect ass and up to her small waist. Emily adjusted her hips so she was pressed against his hard cock, not yet taking him inside her but very ready to. She put her hands on either side of his face and gave him a couple more kisses on the lips.

From his position lying down on the bed, Derek pushed his hips up to hers, his hard cock sliding up her wet center but not yet entering her. Emily ground her hips down onto him and moaned against his skin.

She couldn't take it any longer. She sat up and reached down to his throbbing cock. Her delicate hands reached for him and pressed his tip to her. Derek was normally eager to help and start thrusting up into her, but he was enjoying watching her take control.

Emily lifted her hips just slightly and then sank down onto him, their collective moan filling the room as he slid into her.

She stayed perched on top of him while he remained on his back. Emily started rocking her hips at a steady pace. She watched his face and all the pleasure she was giving him showed. Of course it encouraged her. Derek was happy to watch the soft bounce of her breasts as she rode him.

"You're so fucking sexy." Derek's voice was ragged.

"It feels incredible to be doing this again," Emily said.

She continued riding him, her rocking hips picking up their pace. She was encouraged by the look on Derek's face, clearly close to his release. When Derek knew he couldn't hold on much longer, his fingers found her clit and encouraged her to keep grinding.

"Come with me, Em."

Asked and answered. She gave a few more strong rocks of her hips, and then her walls were tightening, pulsing around him, and bringing him there with her. Her pleasure washed over her and she collapsed on his chest, completely spent. It was rising and falling rapidly beneath her, a result of his release.

"Fuck. It's always so good," Emily said, breathing still ragged.

When they had somewhat recovered, and she climbed off of him, Derek pulled her into his side and brought the covers over them.

He gently pushed her hair out of her face and gave her one more soft and sweet kiss. The pair curled up together, completely satisfied for the first time in months.

They stayed like that for a few moments, just enjoying the silence. Finally, Emily broke it.

"This is so unhealthy," she said. They looked at each other and burst out laughing.