Penny bounced enthusiastically on her bed as Sheldon watched out the peep hole in the door. She smiled at the glee on Sheldon's face. He really was a cutie at times, she thought to herself. She heard running feet and saw Sheldon motion her to bounce more. She crawled up onto her knees and bounced as hard as she could. After a minute or so Sheldon left the door and moved into the bedroom.

"I believe they are on their way to play paintball, now." Penny stopped bouncing and flopped over onto the pillow and giggled.

"Did you see Raj's face?" she asked. "I thought he was going to have an accident!"

Sheldon smiled and moved to the kitchen. He put on the tea kettle and watched Penny move to the couch. She curled her feet up under her and looked over the notes he had given her last night. He took a couple of cups down from the cabinet and glanced at her.

"Penny, I think we may have overlooked a tiny flaw in our plan," he said suddenly. She looked up and frowned.

"What do you mean?"

Sheldon poured the tea and carried the cups to the coffee table. "One of the things we have not discussed are PDA's."

Penny looked confused. "Sweetie, we both have smartphones. Why do we need PDA's?"

Sheldon rolled his eyes. "Public displays of affection, Penny."

Penny snorted. "Sheldon, you don't do public displays of affection. No one is going to expect you to hold my hand."

Sheldon barely controlled the twitch over his eye. "Missy will. And I do not think Leonard will believe us without some form of affection."

Penny shrugged. "Okay, sugar. Just grab my hand when one of them is looking."

This was not going the way Sheldon wanted. He tried again. "I think we can do a little better than that."

He moved a bit closer to Penny on the couch and leaned in to kiss her cheek quickly. Penny yelped in surprise and stared at him. Sheldon sat back and smiled smugly. "That should work, should it not?"

"You kissed me!" Penny exclaimed. "Since when do you kiss someone?"

Sheldon sighed. "It is for our ruse, Penny." He glanced at her sideways. "However, if you do not think you can manage such an act," he said calmly, "then I guess we can settle for hand holding and hope no one questions us too closely."

Penny's eyes lit up at his challenge. His pulse leapt with anticipation. He knew she could not resist one-upping him.

"You're right, sugar. We should be convincing." Penny swiftly rotated her body and Sheldon gasped as she was unexpectedly straddling his lap. Her arms wound around his neck. Instinctively his hands moved to her hips. Penny moved in close and licked her lips before gently pressing them to his. Sheldon was frozen, unable to do more that dig his fingers into her skin as she kissed him. After a couple of seconds she pulled away smugly.

"Hmm, guess I was wrong. Not very convincing." Penny grinned and started to move off him. Sheldon wrapped his arms around her waist and held her still.

Penny's eyes widened as Sheldon drew her down for another kiss. He pressed his lips to hers as she had done. Penny's mind short circuited. She parted her lips and drew his bottom one between hers so she could suck on it gently. Sheldon's hands splayed across her back as he pressed her chest against his.

Sheldon determinedly pushed away all thought of germs. He copied Penny's movements and sucked on her top lip. Her tongue darted out to stroke his lip, and he trembled. Penny quickly pulled away. They were both gasping.