Vulcan fingers are sensitive, and I can't stop thinking about it. None of these thoughts are in the bible. Enjoy!
Warnings: Smut (18+), sub!spock, finger sucking, thigh riding, frottage, cumming in pants, unedited
Teaching you that Vulcans had sensitive fingers was probably one of the best and worst things to happen to Spock since you'd met him. The sweetest kind of torture. You had grabbed him just as he got off duty, shoving him up against a wall in an unoccupied conference room. Poor thing probably still hadn't processed how he'd ended up there.
You hadn't even given him a chance to speak before you took one of his hands in both of yours and pressed a kiss to the tip of his pointer finger. The pad was soft under your lips. Much softer than a human's. Much softer than your own. Almost as soft as a kitten's paw. A shaky breath made its way past his lips before he could catch it, and you smiled. He looked down at you with a disapproving look that couldn't quite conceal the desperation in his eyes.
"Lieutenant, this is a highly inappropriate setting for such actions," he said, voice calm and even. You wanted to break that.
"It is," you said agreeably.
"Perhaps we should find a more suitable pl-" You slid your tongue against the pad of his finger, and his whole body jerked. "Lieutenant!"
"You like it," you said, licking his finger again.
Spock looked away, the tips of his ears flushing a soft green. He wasn't going to admit it, but he couldn't lie either. Instead, he started mouthing math problems to himself. Random number sets. The Fibonacci sequence. Anything to distract himself from your hot mouth against his fingers. You had him just where you wanted him. Leaning into him, you pushed your thigh between his legs. His whole body jerked again.
"I do not think you have considered the full spectrum of issues this could pose for us," he said. His unoccupied hand clenched and unclenched like a heartbeat. Just like the one beating between your legs.
"And those are?” you asked without pulling your mouth away from his hands.
"As Commander, it goes against regulations to have-" His breath hitched as you sucked his finger gently, "-relations with someone of a lower rank."
"That makes this unethical." His voice was starting to waver.
"Technically," you mumbled around the finger in your mouth. The movement caused him to buck his hips against your thigh. A thin little whine broke loose from the back of his throat.
"Someone could ca-catch us in the act," he panted.
"Counter point," you said.
"What is that, Lieutenant?" he asked.
"I don't care, and neither do you. You want me," you purred.
"Want?" Spock said the word like he didn't know what it meant. It had been so long since he allowed himself actual desire that the feeling had become foreign. You didn't mind being the one to remind him.
"Want, Spock," you confirmed, "You want me."
Nipping at the pad of his finger, you took a second one into your mouth. You could feel his cock throb at the contact. That's what you were looking for. Swirling your tongue around his fingers, you dropped your hand to his hip to coax him into a slow grind. He let you, a shallow, unsteady breath caressing your neck. You watched as he tipped his head back and let it thump against the wall behind him. Hard-fought control cracked under your pressure.
"Lieutenant." His eyes turned on you pleadingly. Though, for what you weren't sure yet.
"May I?" he asked almost shyly as he pressed two of his fingers against your lips. Humming appreciatively, you took them into your mouth. The sigh of relief was all you needed. A low, embarrassed whimper followed as you suckled and swirled your tongue over his thin fingers. He jerked again in your grip, his legs beginning to shake like he'd lost control over his body. Releasing the appendages with a pop, you pressed your thumb against the pads.
"Feel good?" you asked. The hand you hadn't been paying attention to pulsed faster.
"Yes," he sighed, rolling his hips.
"How good? Tell me.” Swallowing his fingers again, you watched him with expectant eyes. He hesitated a moment before squeezing his eyes shut and starting to hump your leg in earnest.
“Sure you can,” you said.
“I am not in control. I will not choose my words as carefully as I should,” he protested. You smiled wickedly, nipping at his fingers and pushing against his cock. His answering moan sounded like it was being ripped from him.
“I'm in control. Tell me, Spock,” you coaxed gently. He practically sobbed, lanky body curling over you.
“I feel,” he said, stressing the word feel.
“What do you feel?” You flicked your tongue between his fingers.
“Pleasure,” he whimpered. His hips strained. You could feel how his cock pulsed, teetering on the edge. It was all too much and not enough at the same time.
“Overwhelming pleasure?” you pressed.
“Yes. It-it is too much!”
“You can take more. Just a little more,” you said soothingly. Spock nodded like his head was only loosely connected to his neck, rutting his cock against you sloppily. You could all but taste how close he was. A pretty green blush bloomed across his cheeks, dark eyes pinched shut, and needy fingers pushing weakly against your lips. You kissed them softly.
“I-I-I am—” he sputtered.
“You gonna cum, Spock? You like putting your fingers in my mouth so much you're gonna cum all over yourself?” you teased. He whined high in his throat, pushing more insistently at your mouth.
“Please, you must—I need—want,” he babbled incoherently, but you understood.
Sucking his fingers back into your mouth, you lapped at the soft pads the same way you wanted him licking between your legs. Fast. Relentless. Spock lost rhythm completely. Your hold was the only thing keeping him moving the way he so desperately wanted. With one last hard suck, his back arched up, and he came in his pants with a choked off groan.
“There it is,” you said, gentle pride coloring your voice as you maneuvered his twitching body through the aftershocks of his orgasm.
“(Y/N),” he said as though it were the only word he remembered. He dropped his forehead against your shoulder.
“Good job, Spock. You did so good,” you said. For a moment, he was still, gathering himself again.
“How illogical,” he mused.
“Despite not experiencing an orgasm during our encounter, you still praise me for my performance. Illogical,” he said. You snorted a laugh.
“I got exactly what I wanted,” you said.
“Vulcans have sensitive fingers. Think of it as an experiment. I wanted to know just how far that went,” you explained. “Pretty far.”
“Indeed.” Spock shifted and grimaced subtly. You had to fight your smile off your face at the sight.
“Let’s go get you cleaned up. Then maybe I’ll let you conduct an experiment of your own,” you teased. Heat flooded Spock’s eyes as he looked down at you. Somehow, you were sure he was going to figure out all your sensitive spots.
