Disclaimer: Don't own Criminal Minds, don't own Penelope or Derek.
The thumb war had been going strong for ten minutes before Penelope suddenly stopped. "What are we doing?"
"We're having a thumb war. Or we were," he claimed her motionless thumb with his "until I won." He crowed, looking so adorable she couldn't help but smile.
"You did win, and we're all very proud of you," she said in the kind of voice he had heard her use around Jack and Henry.
"Hey!" he cried. "Don't patronize me," he commanded, pouting. Penelope burst out laughing.
"You always fall for that, you big lump." He growled.
"What, and now you're going to make fun of my body? I'm very insecure." She snickered, and he pulled a face. "Alright, alright. But I could have been insecure. You shouldn't comment on appearances unless you have something nice to say," he informed her, sounding very priss. Priss and uptight, Derek Morgan! Yeah, right.
She snickered again, and he fell on her, tickling her until she was laughing so hard she was crying, and completely unable to fight him off. He pulled her wrists above her head in one of his hands, and showered her face with tiny kisses, letting her get her breath back, but keeping her under him. "We," kiss on the forehead. "Are," kiss on her left eyelid. "A," kiss on her right eyelid. "Couple." then he kissed her on the lips, softly and gently.
Just as she started to relax into the kiss, Derek ended it, letting her wrists go and beginning to climb off of her. He had straddled her during the tickle fight. She made a noise of protest at the loss of contact. "Unless you don't want to—to be with me, that is. I mean, I would understand if you didn't want to, it's just I thought you wanted me that way too, and I know it probably wasn't the right time, but I tried to tell you earlier and then there was a case and then the case was—" Penelope put her hand over his mouth.
"Woah, stud. Slow down. I do. Want to be a couple, I mean. With you." She felt him kiss her hand, and she took her hand away and replaced it with her lips. He broke away, causing her to groan slightly.
"Fair warning," Derek said with a grin. "Now that I've got you I'm not letting you go."
Penelope grinned back. "Good, because I'm not letting go of you, either."
They resumed kissing, a different kind of kissing to last night or earlier that morning. Those times had been sweet, gentle, slow. Romantic. There was still love in these kisses, but there was also a desperation and a growing need in them. Six years of knowing each other, six years of foreplay. This was beyond the three date rule she usually stuck to.
Derek pulled away again, "I love you, you know. I've just realised I hadn't said that even once. I love you." She grinned, then pulled him back down to her, impatient to kiss him once more. Now that she had him she never wanted to stop kissing him.
Derek had other ideas. He broke the kiss yet again, "I love you! And you love me!" he told her happily, like she hadn't just been there with him this whole time. Penelope growled, and pushed him down. She climbed on top of him, straddling his hips quickly before he could protest.
"I never figured you for a babbler. No more talking, stud." Derek gulped, his eyes darkening with passion.
"Yes ma'am." Penelope reclaimed his lips again, happy now that the only time his lips were leaving hers was when they were on her neck, her ears, her back. Or when their tops were coming off. Or when he was kissing her chest, her stomach, her hips. Special attention was paid to her scar from the time Battle had shot her. And finally, finally, he used his mouth to worship her, not stopping until she came undone beneath him, crying his name.
She was eager to repay him. He was eager to finally show her just how decent he was without his clothes on.