a/n: Picking this back up because it's that time of year again…the lovely Kricket Williams has a birthday coming up! ;) I hope it's a happy one, Krick!

Penelope giggled as she felt a shiver run down her spine. Only she would consider a room full of technology foreplay. Not that there was anyone to play with, but still… The smile hadn't left her face when she turned toward the door. Hadn't Hotch said there was—Penelope froze as she met the piercing gaze across the bullpen.

Her jaw dropped as she gasped, and without stopping to think, she started forward. Now that was someone to play with.

The bag that was slung over Derek's shoulder fell to the floor as he, too, started forward. But his pace was much quicker than hers, and she'd barely made it to the ramp when he met her. His hands clamped on her waist, and his eyes never left hers as he walked ahead, forcing her to walk backward until they'd made their way into her office.

"What are you—"

"Holy fuck," Derek breathed as his lips came crashing down onto hers. Penelope felt an instant flood between her thighs as his tongue stroked hers, and her body swayed forward until it was flush against his. Her breasts flattened against his chest, and her hand snaked up underneath his t-shirt to rest on his bare waist.

"Mmmm…" she whimpered.

She groaned when he pulled away and lifted his hands to her face. His thumbs stroked her cheeks as he looked down at her. "How did you find me?" he asked in a husky voice.

"Wha…what?" Penelope asked in confusion.

"How did you know I work here?" he pressed.

"I…I didn't," she answered; her mind was clouded with desire. His erection was pushing against her belly, and she just couldn't think! She needed…release. And she needed it now!

"I haven't had lunch yet," she blurted out.

He gave her a puzzled look. "Penelope," he said firmly. "What are you doing here?"

"I…I think I could answer your questions much more efficiently if we had sex first," she informed him. Preferably before he found out she was Paxton Garcia's sister. Did he work in this unit?

Derek laughed heartily as his hands dropped to her waist and he gave a light squeeze. "I think we should talk first," he said.

"Fine," she agreed. "Let's talk about the hotel I saw just across the street."

"Persistent little thing, aren't you?" Derek said as his eyes darkened with desire.

"Some people tell me I have a one track mind," she remarked coyly. "Do you…do you work in this unit?" she asked.

"Yes," he answered. "And you never answered my question. What are you doing here?" he repeated.

"I…I work here, too," she said. "Through a series of…really…weird circumstances. But before we talk anymore…we have sex."

"Penelope—"

"Oh, my God!" she said with a gasp as she stepped back. "Unless you're with someone! Are you with someone? You're with someone!" She socked him on the arm. "How could you kiss me if you're with someone? You scoundrel! You—"

"Penelope," Derek said. His voice was so mesmerizing, so seductive that her tirade came to a stop.

"Yes?" she asked in a small voice.

"I'm not with anyone," he assured her.

"Oh," she said with a relieved sigh. "Good. That's good. You can be with me for the next half hour. Unless you're not sexually attracted to me anymore. Oh, my God! Do you regret sleeping with me? Was it not as good as I remember? I thought it was amazing, but maybe I—"

Derek took a step forward and clamped his hand over her mouth. "It was as good as you remember," he said, eyes dancing. "Did you always talk this much? I don't remember you talking this much."

Penelope took a deep breath as she put her hand on his chest and ran it up over his shirt until she was cupping the back of his neck. "That's because when you're inside of me…I'm speechless. And we spent most of our time together with…you…inside of me," she reminded him as she batted her eyelashes at him. "I promise to shut up if you promise to sleep with me again."

"I promise," Derek found himself saying before he could stop the words. The woman was like a freakin' siren; she was sexier than he remembered, and he had a feeling she could get him to do anything she wanted.

"Great," she said. "Just let me get my bag."

"Bag," Derek said as he snapped out of the spell she'd had him under. "Fuck…my bag!" He sprinted out the door and down the ramp, grabbed his bag, and then returned to her office. But that short amount of time was enough to clear his head. This was his best friend's sister. Tomorrow he'd be joining the team. Would he be able to face Paxton again if he slept with Penelope?

"Remember that thing I did with my mouth?" she asked wickedly.

Derek felt his dick jerk at the reminder; he remembered that mouth…hot...sweet…talented as hell.

Yep; he'd be able to face Pax just fine.

Once they'd left FBI Headquarters, it was a short walk to the hotel; neither one spoke on the way there.

Derek had them checked in in no time, and once he'd gotten the key, they made their way to room 256.

Derek frowned as he closed the door. "Penelope—" By the time he turned around, she was naked to the waist. Her gorgeous breasts were there…just waiting for him. Her nipples were straining towards him and he groaned.

"You've changed your mind, haven't you?" Penelope asked with a groan. "Oh, God. This is…I'm so sorry," she said as she reached for her shirt and covered her chest. "I…I came on too strong."

"God, woman," Derek growled as he walked towards her. He pried the shirt from her fingers and tossed it across the room. "If you don't zip those lips, I'm gonna have to bypass foreplay just to shut. You. Up," he said teasingly.

Penelope sighed in relief as she looked up at him. "You haven't changed your mind?"

He leaned forward and placed a soft kiss on her lips. "No, Baby Girl. I haven't changed my mind."

"Then I'm OK with no foreplay," she sighed.

Derek grinned as he reached for her wrists and wrapped her arms around his waist, bringing her body closer to his. "Oh, there'll be foreplay."