Disclaimers and warnings in chapter 1.

Spock felt extremely...enlightened. In one afternoon, he had gone from being a man whose only sexual experience was the occasional adolescent wet dream, to one who now wanted to try every sexual activity possible for a humanoid with his anatomy. He had been told that until he first experienced the madness of pon farr, sexual satisfaction was illogical and irrelevant.

He wanted to test that theory. Over and over.

He tidied himself up and spent a little time observing the activities going on elsewhere on the bridge. Although obviously sex was meant to be enjoyed with a partner; apparently two or three was not uncommon, he thought, watching Nyota giving Chekov and Sulu a hug before she withdrew from her place between them and looked around. She caught his eye and her expression became - well, the only word he could think of was 'predatory'. When she turned to step up to his station he felt his innards quiver - with anticipation or fear he could not tell.

As she approached, he rose politely and asked, "Is there something you need, Lieutenant?" Apart from a couple of kisses, shared during moments of extreme danger, they had not pursued anything more involved; Spock felt comfortable as her friend and she seemed to feel the same way.

Now his friend stood before him in nothing but a pair of regulation black boots, every curve highlighted by the amber glow, her hair tumbling wantonly over her shoulders. She put her hands on her hips and looked him up and down and this time the organ that quivered was externally discernible. Nyota lowered her eyes to his fly and spoke.

"Yes, Commander, there is. And I believe I have found it."

If Spock had been fully human, he would not have believed his luck. As a Vulcan, he found it logical that Nyota should come to him at some point; he was grateful that the opportunity for his first experience with intercourse might be with her. However, he wasn't sure how to proceed.

"Nyota, I - "

"Shh," she murmured and he felt her warm hands busy at his waistband. "It's your first time, I know, Spock. Let me show you."

One thing he did know how to do; he lowered his head and took her mouth softly with his as she finished opening his pants and pushing them down as far as his boot tops. She was obviously adept at multitasking; while he was getting lost in her kiss while still trying to decide where best to take her, Nyota pushed on his shoulders so that he sat right back where he'd begun, in his work chair. Still kissing him deeply, she climbed on his lap, straddling his thighs, and Spock heard himself moan.

"Yes, baby, good, isn't it?" she whispered, running her fingers into his hair and nipping at his lips. Thankfully, it was a rhetorical question. His hands moved from her shoulders, which he had grasped during their descent, down over her breasts, the backs of his fingers brushing lightly across her nipples. It was her turn to moan; she arched her back and he bent her back a bit more to take a nipple in his mouth. He had watched someone doing this in a film once. The film did not do it justice. With his mouth full of her firm breast, her hands tugging at his hair and her sex squirming forward to nestle against his erection, he nearly climaxed without ever entering her.

"Hold on just a little longer," Nyota whispered, tickling his ear with her tongue, and she stood up, her breasts at the level of his mouth. Spock tried to capture one with his lips but she giggled and leaned forward a bit, and then the tip of his penis was touching her and she sank down on him, her nails digging into his shoulders.

Spock closed his eyes and opened his mouth, found hers, latched on, and braced his legs; his hands were supporting her backside. He gave none of these logistics any thought; there was no thought; there was only sensation. He pushed up, into her body, and gasped against her lips at the bolt of heat that ran through him. Nyota was holding on as he continued to pump and she rode him to his finish, all too soon, to an unbearable, exquisite orgasm, Spock actually crying out, shuddering, gasping against her neck.

Gradually he lifted his head to look at her face, and she nodded and whispered, "Me, too."

A/N: Spock's education has only begun. If you want more, leave a review so we know you're there...