Penny stared at him. He loved her? Sheldon? The man who she referred to as 'Mr. Spock' because of how he acted? Was that even possible? Of course, he loved his Mee-maw, but that was different!

Leonard stared, phone in hand, waiting. He was just as anxious to see how she'd respond. Just because she had feelings for him, didn't mean she'd act the way you'd think. Penny was unpredictable, as Sheldon well knew.

Except for the television, the apartment was completely silent. "Penny?" Sheldon finally spoke up, worried. It was unlike her to remain so quiet at a time like that. Normally, she'd be all over the place. Yelling, or crying. Something.

Without warning, she grabbed the front of his shirt and pulled him into another kiss. Amy had been pushed out of her mind, for now. They could deal with that later. Sheldon froze for just a moment before closing his eyes and snaking his arms around her waist. The 'click' of Leonard's phone snapped them out of it a couple minutes later. Biting her lip, she looked up at Sheldon with a small smile.

"I needed proof that happened. There's no way Howard or Raj would have ever believed me if I didn't have proof." Leonard spoke up, causing Penny to whip around at him.

"No! Don't send that to them!" She insisted. If he sent that to Howard, Howard would show Bernadette. She would then ask Amy about it. That wasn't a fair way for Amy to find out what happened. "We don't even know what's happening yet, okay, Leonard?" Penny pleaded, knowing his fingers were itching to hit 'send'.

With a sigh, he nodded. "You might want to figure it out, it looks like Sheldon might explode soon." He pointed to Sheldon before returning to his show. It would be a good distraction until the two of them decided whatever the hell they were doing. Yes, it hurt to see his best friend kissing the women he loved, but they weren't together anymore. Sheldon deserved someone who he actually wanted to be with, and that cared for him back. It hit Leonard that Penny was likely the only one he'd like with Sheldon, where it didn't seem all that weird. Shaking his head, he shut off the television and got up. Staying in that apartment would only make him analyze it more. "I'm going to get supper. I'll be back, and I'm sure the guys will be here soon." He reminded them as he grabbed his keys and shut the door.

Penny turned back to Sheldon as the door 'clicked'. He did look like he might explode. "Sheldon, sweetie? We need to talk about this." She told him gently. "Why don't we go sit on the couch?" It seemed like a good idea. His spot on the couch might help him calm down some.

Sheldon gave her a small nod before following her to the couch. Sitting, he linked his fingers together as he often did. "Penny, I would like to propose something to you." He began, looking at her. "I suggest that we enter a relationship agreement. One that would include...touching." He was adding that more for her. He did enjoy touching her, but he knew that dating Penny meant he would be venturing into brand new territory. The thought of kissing her again made him blush, which lead him to think of the other things he would need to google. He had a basic understanding of sexual intercourse, but Penny had experience. There was no way that Sheldon Cooper could not be the best at that, as well.

Chuckling, she patted his knee. "No, Sheldon. It's called a relationship, not a business partnership. I'm not signing a contract, or an agreement. This is me and you. Things change, people evolve. You've come a long way since I met you." Penny wanted a real relationship with the man, not something on paper.

"...On one condition." He glanced at her sideways.

"What's that?" Penny was curious as to what his brain would come up with. There was no telling.

Shifting to face her, he smiled. "Just keep your apartment clean. I mean, thoroughly. If I'm going to be spending time over there, which I would assume I would, then I'd like to feel safe. I'm putting myself in danger of enough germs as it is." It was fair enough for him. She knew he hated mess.

Penny couldn't help but grin. That was it? It would be a job to get it 'Sheldon-approved', but it wold be worth it. "Now, the fun part." He looked at her funny, wondering if she was going to pounce him again. "Amy." A look of realization came over him. They would have to inform Amy. It was only fair. "I think that since you broke up with her, you should be the one to tell her." Penny would if he insisted, but she felt Amy would take it better from him.

"You're right. I don't want her to hear this from someone else and get upset." Sheldon nodded, pulling out his phone. "Should I call her, or text her?" With the look Penny gave him, he felt silly for asking. "You're right. I'll call."

"Okay. I'll be back over, I'll give you some privacy." She went to stand up, but was surprised when his fingers caught hers and pulled her back to the couch. He slowly moved their hands so that they were intertwined. Penny watched their hands. They fit so right together, but it was so weird to her. Sheldon hated to touch, but had no problems touching her. It warmed her inside.

By the time she looked back up, the phone was up to his ear, and she gave his hand a small squeeze. Now was the time that he needed her support. Hell, she'd need his when Amy blew up her phone. "Yes, Amy, I need to discuss something with you." He shook his head as she replied. "No, I do not wish to return to a relationship agreement with you. I am now in a relationship with Penny. Yes, our Penny." He glanced at her with a small smile. "She has had feelings for me for some time, it seems. She didn't want to voice them out of concern for you. She cares about it. It wasn't until she kissed me that I realized I felt something back. I didn't know what, so I did some research. Everything I felt for her was love." Sheldon explained to Amy. Penny was surprised that it didn't come off rude like he normally would. He sounded...sincere. "I'm glad you agree. Goodbye." Hanging up, he placed the phone on the arm rest. "She's not over thrilled, but she does agree that what I feel for you is love."

Penny was shocked. Amy was...okay with this? "Well, I'm glad she didn't yell at you." She smiled before leaning over to kiss him again. His lips were smooth, and gently. It was obvious he was unsure how to move at first, but like with everything else- he was an extremely fast learner. Shifting so that she could reach him better, he pulled her onto his lap. He was stronger then he looked. It wasn't anything forced, or demanding. For now, it was gentle, getting to know each other, and caring.