A/N: Thanks for the many positive reviews. I'm glad you enjoy the story.

It had been four days. Four days since Uhura attended the new professor's class. Due to being a top student, it was easy for the other teachers to write passes for her to be excused from his class. Uhura couldn't help but smile at her ingenuity. It was a Friday and all classes let out early for the day. It was a good day to find Spock. He had been missing since the new guy appeared. He never took days off or at least would have told her. Well, she would like to think they were far enough in their friendship where he would. Uhura stood up and decided a walk around campus was in order.

The day was gorgeous. Students were sitting on the grass talking and some were flying kites. The light breeze and sun were warm and the sky a perfect baby blue. What made it better was the music she was listening to on her music player. There was nothing that could make this day worse.

BUMP!

A body fell on top of hers. She was dazed and confused. After blinking a few times, her eyes came into focus. Her heart sped up instantly. Brown eyes gazed at her intensely while short locks of brown hair curtained her face. Thick eyebrows furrowed and beautiful, beautiful lips curved up exposing a breath taking smile. If she wasn't a sensible woman, she would have leaned up and kissed this angelic face. She licked her lips at the thought and immediately regretted for his gaze dropped and lingered on her lips. This wasn't good. She had to defuse this situation and quick! So she said the first thing that came to mind.

"Spock." It sounded like a yelp as blurted it out.

He arched a brow and his smile widened. He made no effort to move. Instead, he lowered more of his weight on top of her.

"Only you would be thinking about a Vulcan when there is a hot guy on top of you." His tone was matter of fact. Annoyed, Uhura finally began to struggle. The man stood and extended his hand to help her up. He didn't let go of her hand when she stood in front of him. Uhura looked down at their joined hands as if it were some nasty bug that she wanted to squish. He let go and moved a step back.

"Professor." She spoke his name as if it was an insult. "I was merely wondering where Spock was and when he would be coming back."

"Why? Don't you like me being here?" He asked, his smile never fading.

"Actually I don't. You see, Professor Spock performs his lectors in Vulcan, unmatched by any human, even I. So I find his lectures very stimulating. Yours on the other hand have come up short." Uhura thought that was a pretty good jab and smiled to herself. Yet he didn't stop smiling.

"So that's why you've been ditching my class. You know, I've talked to your other teachers and they will not allow it anymore. They are taking away from your studies in my class. So to make up for lost time, you will be helping me as my aid from now on. We can start by grading papers this afternoon." The Professor spoke his lines in perfect Vulcan.

Uhura was stunned. Stunned at how his voice sounded like silk, stunned that if she closed her eyes, he sounded exactly like Spock and stunned because she would be spending the afternoon alone with him, grading papers on a Friday.

"WHAT!?" She said in disbelief.

"I don't see the problem considering you did it all the time with Spock." He replied calmly as he placed his hands into the pockets of his black creased dress pants. His shirt was burgundy, a color that looked very good on him and he had a black skinny tie. Uhura's eyes narrowed.

"How do you know that?" She asked followed by crossing her arms. She didn't think anyone would notice all the time she spent working with him in the lab or helping him with papers. She hadn't been spending that much time with him had she? Who would be paying attention any way?

"Oh we're close, really close. So close that I can tell you that he really enjoys your company." The Professor once again invaded her personal space. He walked behind her and placed his lips inches from her ear. His voice was low, seductive, almost a growl. "I can also tell you, not a day goes by that he doesn't think about touching your smooth skin or--" He inhaled deeply. "How he would love running his fingers through your long hair. Not a day goes by that he doesn't notice how beautiful you are or how you make his day just by your smile."

This was too much. This was way too much. Uhura felt like she was going through a system overload. She wanted to blush, smile and giggle like a school girl at this new inside information. She straightened her spine and balled her fists to gain composure. She turned to him to face him and only then, realized how close he was. He was a second away from kissing her. Any small movement and his lips could be on hers in less than a second.

"Don't lie to me."

"Why would I? I know him more than you think. He tells me things. Things he cannot tell another or express freely." His voice was a whisper, warm on her lips. Her lips, her lips, he kissed those lips.

Spock never felt more alive and so free. In this form, he could say all the things he wanted to say and do all the things he wanted to do. No more would he have to battle his Vulcan side and repress his emotions. He wanted to show Uhura how he felt. He wanted to tell her before some lucky guy beat him too it. There had to be a way for him to let go. That's when he overheard a conversation in the science lab that had the answers.

The students were working on a machine that could humanize its subject. Some aliens could not talk and to help with their research, they needed them to act more human so that they could gather data. It was completely experimental of course. None of them expected it to work. None of them expected that their class instructor wanted to be their guinea pig. The machine and experiment was a success. Not only did his appearance change but so did his attitude. He was affected more emotionally than before and acted, well, human. In addition, he maintained his Vulcan abilities like touch telepathy. Thanks to the data they gathered, the also concluded that it was completely reversible.

Spock had planned on telling her how he felt but had no idea how to do it. He also had no idea how she felt about him. The only logical explanation was to do some undercover work and find out. If he knew how she felt, then maybe it would give him the confidence to tell her his own feelings. All of that was thrown out of the window when he found himself going deeper and deeper into the role of the substitute professor. All of that flew out the window when he found his lips kissing hers. She didn't kiss him back and for the first time, experienced a once sided kiss. Unsatisfied, he let her go.

"I take it you are uninterested?" He said after a brief moment of silence. Uhura wanted to slap him and at the same time didn't. He seemed so innocent, so childlike, so Spock? She shook her head making sense of her thoughts. This wasn't Spock because he was so human, so emotional, and everything Spock seemingly wasn't. Yet there were similarities like how he somewhat looked like him and how he spoke perfect, flawless Vulcan. When she didn't answer, he spoke again.

"I take it there is someone you are interested in then?" He asked. To that she blinked and regained her senses. Maybe if she told him, he would back off. It was worth a shot.

"Actually yes, yes I am." She replied.

The Professor's face alighted with a grin. "Walk with me."

Uhura stood there. "Excuse me?"

"Walk with me. Tell me what he's like." The Professor asked and held out his in an 'after you' manner. Uhura sighed. It seemed as if she was hearing Spock wherever she went. As the Professor walked, he placed his hands behind his back. Uhura stared and he stopped his walk. He stared at her in wonderment, a brow slightly rising.

"Well, he's smart, very smart actually. He's also tall, slim with an athletic figure, dark brown eyes you could get lost in for hours, raven black hair, the most beautiful kissable lips and pointy ear—"She stopped herself. She sounded as if she were daydreaming when she described him but soon fell back into reality when she realized what nearly escaped her lips. The Professors eyes grew wide.

"Pointy what?" He asked and couldn't hide the huge grin on his face.

"Nothing." She said and looked away from him.

"Fascinating." He murmured and Uhura's eyes shot back at him. Her breathing sped up once more and she had to put a hand on her chest to calm herself down.

"What did you say?"

"Nothing." He replied and they just stood there.