AN: Last chapter! This one was so hard to keep straight. Never will I write a time travel story again. WAAAY to complicated.

Sheldon reached the top of the stairs and looked into the hallway. Everything was silent. Everything was the same. But then again, it had always been the same. Tentatively, he took a step and stood just outside of 4B, Penny's apartment.

Knock. Knock. Knock

"Penny?" He whispered through the door.

Knock. Knock. Knock.

"Penny," He spoke a bit louder, wishing she would open up.

Knock. Knock. Knock.

"Penny," Still there was no answer.

No, it wasn't supposed to be this way. She needed to open the door. Sheldon put his hands in his pockets and began to pace and think.

He could walk away and wait for Penny to could go get a screwdriver from his apartment, but that would mean facing the rest of his freidns and potentially blowing the operation. Sheldon absentmindedly gripped the keys withing his pocket. As his thumb traced the edges of his own key he noticed something was different. Pulling out the whole chain he observed a second key. The ridges varied slightly from his, but the head was the same. He looked back at Penny's door. It was her spare key.

Leonard had delegated the task of opening Penny's door when they had delivered furniture to him and Penny had never collected her key. He walked to the door and gently took hold on the knob. Did this mean he was still in the beta continuum? He slid the key into the hole and heard the resonating click as the tumblers unlocked the door.

"Penny?" Sheldon called once again. "Penny?"

"Sheldon?" Penny appeared from with her bedroom. It was her. It was his , he missed her. Her bouncy blonde curls, her vibrant green eyes, everything was as it should be. Well, except her eyes. They were red, swollen, and tear-stained. "What are you…How did you?"

"You didn't finish your sentence."

"So you're back to correct my grammar?" She scowled at him, but she was wrong.

"No, Penny, I've changed," His eyes pleaded for her to understand.

"Changed? Ten minutes ago I was an invasive species!"

"Penny, I'm sorry I hurt you. I wasn't aware."

"And you think that after ten minutes I'm supposed to believe," she began to rant, but stopped mid sentence, "aware?"

"Please, Penny. I need to know: what were you about to say?" He looked down at her and searched her green eyes for what he already knew to be the truth. "I've taken you for granted and even insulted you, but, I have realized what you are to me."

She held her head at an angle, he continued. "I…I…need…you, Penny."

Penny smiled up at him then took his hand. She pulled him closer and Sheldon could feel his heart racing in his ears. He let his head drop slightly as she came up to him and their lips met. It was a quick kiss for as soon as they broke apart, Penny clung to Sheldon's waist and he, to her. Sheldon never wanted to release Penny out of fear that time would once again unruavel.

"Fallen for you," she whispered into his chest.

"What?" He pulled her back and encountered her gaze.

"I was going to say that I wish I'd never fallen for you."

"Perhaps, for the sanity of all parties involved, it is best if we allow the past to remain in the past."

So, how was it? Did you see it coming? PLEASE PLEASE PLEASE PLEASE Let me know. I'm interested to see how well I pulled off the "Sixth Sense" effect.