AN: Just a simple, smutty take on Spock/Uhura. Just a one-shot for now, but if people like it I can always write more. Please review!

And be warned; this is pure smut.

Spock was in his room, getting his things settled when he heard the soft knock at his door. "Enter," he called out, hearing the door to his room slide open and shut. He turned to find Uhura in his room.

"Hello," she said. He nodded in greeting.

"What brings you here?" he asked her.

"I wanted to talk to you…about us."

Spock nodded again, indicating that she should continue. His face stayed passive and emotionless.

"When you and I were at the Academy…you were my superior…so you kept me at arms length most times. I understand that, and I never pushed. But now…I am no longer your student. You are still my superior, but things are different now…"

Uhura stepped closer to him. Spock didn't move.

"Uhura, I'm still not sure that this is right," he started, but he was interrupted by Uhura slipping her hands into his.

"Spock, listen. I have never asked you to be anything but yourself. I will respect your rules on the bridge. While on duty, we are professional, and I promise I will not break those rules. But when it's just us, off duty…why can't we just be happy?"

Spock's impression stayed the same, but he slowly wrapped his arms around her.

"I think that will be acceptable," he said. When she leaned to kiss him he returned the kiss softly. Uhura could swear she saw the hint of a smile on his face.

After some small, short kisses, Uhura led Spock to the bed, sitting down and tugging at his arm, indicating that he should sit too. He joined her on the bed, reaching out to run his fingers through her hair. He was surprised by his instincts around her, but he supposed that was just his human side coming out.

"Spock, I have a question for you," Uhura said.

"Yes?"

"I have done some research on the Vulcan concept of pon farr…and I am curious. Since you are half-human, how will that work for you?"

Spock appeared deep in thought, yet Uhura could tell by his slight shift in posture that he was uncomfortable. She had learned to look for subtle clues to sense his changing emotions. She had also learned not to call him on it, so she just waited for him to answer.

"I have done a lot of research on this matter, and I have yet to come to a logical conclusion."

"So, in pon farr…you can only mate once every seven years?"

"There doesn't appear to be any real desire to mate any other times."

"But what if you wanted to? Could you?"

Spock looked confused. "For what purpose?"

Uhura stood up slowly and turned around to face Spock, still sitting on the bed.

"Purpose? For…for fun, to feel close to someone, there are a hundred different reasons."

"Uhura…I believe you are implying that you wish to share intimate relations with me."

She sighed. "Yes…and I am sensing it is a lost cause."

Spock looked into her eyes. "I don't know if I am capable."

"Let's find out then," Uhura responded, slowly pulling her shirt off, leaving her clad in a red bra. Spock looked anywhere but at her, clearly confused as to how to respond.

She broke out into a smile. "Well, Spock, I think it's clear you are certainly capable of intimate relations." Spock's faced looked slightly puzzled, but he followed Uhura's gaze and realized that his pants were a lot tighter. He shifted slightly and tried to subtly adjust himself, but Uhura took his hand in hers and moved it over her body. She slowly led his hand up her bare stomach, over the material of her bra, and continuing to her shoulders. His hand dipped back down towards her breasts, and his expression now was that of curiosity.

Uhura reached her hands behind her back, unhooking her bra and letting it fall off. Spock didn't hesitate this time, letting his fingers brush across her nipples. He was studying her with more curiosity and a need for knowledge than lust, but Uhura would take what she could get for the time being. If it took all night, she would knock down his walls.

Taking it slow, Uhura sat down on the bed and eased Spock down so they were both lying on their sides, facing each other. She slipped her hands under his shirt, running her hands up his chest. It was smooth and hard, just like she had imagined. She sucked in her breath at the feeling, and Spock looked confused.

"Touching me this way…it pleases you?"

Uhura took his hands and once again placed them on her breasts. "Doesn't it please you?"

Spock let his hands roam slowly over her body. "It does please me," he answered.

Uhura threw caution to the wind and tugged his shirt off. She was met with no resistance, so she pressed their bodies together so they were skin to skin. His arms tightened around her back and she let her nails scrape lightly across his. After a few moments, Uhura pulled back slightly and let her hands roam downward. She could feel he was rock hard, and she moved her hands down and let them gently brush across him.

His gasp surprised Uhura, who immediately removed her hand. But before she could ask him what happened, he moved his mouth to her ear. "Do not stop," he whispered, teeth clenched. Confidence back, Uhura slowly unbuttoned his pants and slid them down his body. Now he was lying completely naked in her arms. Uhura touched him everywhere; his chest, his legs, his butt. She stroked him gently and ran her thumb over the tip.

"No one has ever touched you like this before…not even yourself?" she asked him.

He shook his head no.

"You've never had this urge?"

"I did, but I would just mediate until it went away."

Uhura took her hands off his manhood and took his face in her hands, kissing him. He kissed her back for a minute before pulling back. Uhura gave him a questioning look.

"Everything ok?" she asked.

"Yes, I just feel a little…exposed."

Uhura grinned and slid off the rest of her clothes. "Better?" she asked, and she swears she saw a boyish grin on his face for a split second.

He continued to let his hands roam over her upper body, but he never ventured lower, until she took his hands and slid it down, until his fingers brushed across her most sensitive spot. She slowly coached him through it, letting him experiment with his fingers and moaning when he got it right. It didn't take long for him to bring her to release, and soon she was digging her fingernails into the sheets, arching her back and moaning.

Spock seemed both surprised and pleased with the physical response he had caused. Uhura kissed him and lay in his arms for a few minutes, coming down from her high. Finally, she took his face in her hands.

"Spock?"

"Yes?"

"I want you to make love to me," she said, watching his face closely.

Spock nodded, and Uhura climbed on top of him, letting her breasts brush across his chest as she lowered herself on to him.

She sat still for a minute, letting her body adjust. She leaned forward, putting her lips to his ear.

"For once, Spock, don't worry about self control…just enjoy it…"

She moved slowly, building up a rhythm. His breath got quicker, and his toes started to curl. She let him hear her moans, as she arched her back and picked up the pace. She could tell by his physical reactions he was getting closer, so just to tease him she stopped moving.

But she only stopped for a second before she felt herself moving again. Her confusion was short lived however, as she soon realized Spock's hands were on her waist and he was thrusting up into her. A few more thrusts and it was game over. His fingernails were digging into her waist, and a low, deep moan escaped his lips as he came.

He seemed unable to move after, so Uhura slid off of him, kissing him softly before heading into the bathroom. She came back with a warm washcloth and cleaned him off. She slid his underwear back on him, feeling he'd be more comfortable not being so exposed.

She then slipped on a nightgown and into bed next to him, snuggling up. He wrapped on arm around her and kissed her.

"So," Uhura asked. "Still think there is no real purpose to 'intimate relations'?"

Spock definitely smiled this time.

"There is definitely a purpose...a beautiful purpose."