We Learn By Doing
Fandom: Star Trek TOS
Pairing: Kirk/Spock
Rating: NC-17
Summary: As he and Kirk embark upon a sexual relationship post-V'Ger, Spock worries that his lack of previous experience will lead to disappointment for his lover. Lucky for him, Kirk is an excellent teacher.
Words: ~2700
Notes: Originally published in the KiScon 2013 zine. Thanks to amiss for the beta.
Spock gasps as Kirk pushes him up against the wall of the newly refitted captain's quarters. He has wanted this for so long, even while convincing himself that he shouldn't, and now it is really happening. He runs his hands over Kirk's back as the other man kisses him, wanting more, but unsure how to ask for it. "I had assumed you asked me here to talk," he manages.
"Disappointed?" Kirk asks, his fingers running over a sensitive ear.
Spock shivers, shaking his head fervently. "No."
Kirk pulls back and smiles. "Me neither." He studies Spock for a moment, eyes bright with something akin to awe. "I love you," he says. "Why didn't we do this years ago?"
"I cannot recall," Spock replies. "An unforgivable oversight on our parts."
Kirk's smile widens, and he leans in until they are kissing again. Spock pulls him closer, feeling Kirk's arousal against his own. He moves a hand up until he is circling Kirk's temple with his fingers. He wants so badly to meld them, but he is still not recovered from the meld with V'Ger, and he cannot risk harming Kirk. Not to mention doing further damage to himself.
Kirk seems to pick up on his thoughts, as he pulls away again and takes hold of Spock's hand. He strokes the fingers gently with his own before bringing it to his lips and kissing the palm. "I know it's hard," he murmurs. "But your recovery shouldn't take much longer." His eyes sparkle as he adds, "And then you can bond us."
"It may happen naturally," Spock admits. "If we, ah, continue as we were." He is torn between fear and longing at the idea, but cannot imagine stopping now.
Kirk raises his eyebrows, transferring amusement through his touch. "Well, in that case…." He steps away, tugging on the hand he still holds. "Not to sound cliché, but let me show you the bedroom."
Spock allows himself to be led across Kirk's quarters and into the bedroom. The first thing he notices is that the bed is large enough for two people, unlike the bunks present before the refit. He does not yet have an official cabin, but the one he has been using is not dissimilar to the one he occupied on the five year mission. It is certainly not comparable to this.
"Not bad, huh?" Kirk asks.
Spock nods. "It will take some getting used to."
Kirk grins. "We have time."
Gently he pushes Spock down onto the bed and climbs on top of him. He kisses Spock, a soft brush of lips, then again, more passionately. Spock kisses back, his hands coming up to rest on Kirk's waist.
Kirk's lips move down to his jaw and neck and Spock almost groans, rocking upwards so his hardness brushes Kirk's. Kirk gasps, then runs a hand down to cup the front of Spock's pants.
Spock freezes. He doesn't mean to, but the action brings home to him how out of his depth he is here. He is not totally ignorant; he has some knowledge of what two men can do together, but it's all strictly theoretical, and the idea of disappointing Kirk temporarily paralyses him.
Unfortunately, the sudden tension has precisely the effect he was hoping to avoid. Kirk pulls back in dismay, rolling off Spock to lie beside him. "Am I moving too fast?" he asks. "If you're not ready-"
"I am ready," Spock cuts in. "I wish very much to be intimate with you. However, I am not… that is, I have not…."
He sees realisation dawn in Kirk's eyes. "You've never done this before," he says.
Spock shakes his head. "Not with a man." In truth, he is not sure how much use his fuzzy memories of Leila and Zarabeth would be even if Kirk were female, but at least then he would have some real-world experience to build on.
Far from being put off, however, Kirk's expression grows warm and affectionate. "Lucky for you I'm an excellent teacher," he replies, shifting closer and wrapping his arms around Spock.
Spock leans into the touch, resting his head on Kirk's shoulder. "I don't want to disappoint you," he admits.
"You won't," Kirk replies firmly. He rubs Spock's back and adds, "Try to relax, okay? This is supposed to be fun."
Spock nods slowly, then leans up to press his lips against Kirk's. This, at least, he knows how to do.
They kiss for long minutes, Kirk allowing Spock to set the pace this time. Gradually Spock's confidence builds, and he begins to pull at Kirk's shirt, trying to remove it.
"Okay, okay," Kirk laughs, as Spock's movements become more insistent. "I get your point, no need to rip my clothes." He sits up and allows Spock to remove his shirt, then helps Spock with his own.
Once the shirts are gone, Spock pauses, his attention caught by Kirk's now naked chest. It isn't the first time he has seen Kirk shirtless - his friend is not what one would call shy - but it's the first time he's been free to look and touch and admire.
He reaches out, carefully, then slowly runs his fingertips over Kirk's chest, through the soft hair growing there. He has never seen Kirk with chest hair before, but it suits him. Spock runs his fingers through the hair again, purely because he can, but pauses as his eyes catch on a particular scar - a line, barely visible, running straight across the centre of Kirk's chest. He traces it gently, feeling a familiar guilt well up.
As if sensing his thoughts, Kirk says softly, "It wasn't your fault."
"Yes, it was," Spock replies, still tracing the scar. "I hurt you." His breath catches in his throat as he remembers that day; the overwhelming pain that had gripped him when he thought Kirk was dead, murdered by his own hand.
Kirk takes his hand firmly. "Hey," he says. "Look at me."
Spock looks up.
Kirk smiles and squeezes his hand a little tighter. With his free hand he reaches out and traces a circle on Spock's chest. "Do you remember how you got these?" he asks.
Spock glances down. The area Kirk is pointing to contains a dozen or so tiny scars in a circle configuration. He nods slowly. "I believe I acquired them on Gamma Trianguli VI."
"Saving me from a volley of murderous thorns," Kirk adds gently. "You nearly died."
Spock can see what Kirk is trying to do, but it doesn't allay his guilt. He shakes his head silently.
Kirk sighs. "You need more?" He runs a finger across Spock's arm, tracing a faint line across his forearm. "Stepping in front of a knife meant for me." His fingers move to Spock's hairline. "Knocked out trying to get to me." He runs his fingers through Spock's hair and adds, "That's not even getting into all the times that didn't leave marks." He leans forward and softly brushes their lips together before pulling back to look into Spock's eyes. "I trust you," he says. "And it's time to stop blaming yourself for things that weren't your fault."
Spock nods, swallowing unsteadily, and Kirk smiles.
"Besides, seeing the look on your face when you found out I was alive? I wouldn't have missed that for the world."
Spock can't think of anything to say to that, so instead he leans in and kisses Kirk. After a moment Kirk's hands come up to cup his cheeks, fingers stroking through his hair. Spock's own hands go to Kirk's shoulders, gripping tightly. He can feel his penis stirring in his underwear, slowly emerging from its protective sheath, and can't hold back a moan.
Kirk pulls away at the noise. "Something wrong?"
Spock shakes his head. "Quite the opposite," he replies breathlessly. "It appears I am becoming aroused."
"Oh," Kirk says, smiling. "Well, I have ways to deal with that." The smiles falters slightly as he adds, "I mean, if you want me to."
"I would like that very much," Spock replies honestly.
Kirk grins, gently pushing at his shoulders. "Excellent. Just lie down and let me take care of everything." He begins unfastening Spock's pants, then pauses, suddenly serious. "Tell me if I do anything you don't like, okay? I want this to be good for you."
"I will do so," Spock replies, though right now it is difficult to think of something Kirk could do that he would not like, other than stopping.
He lies back and allows Kirk to unfasten his pants, then shifts so that Kirk can slide them down and off. He experiences a moment of nerves when Kirk does the same with his underwear, wondering what his friend's reaction will be to the sight of genitalia so different from his own.
He needn't have worried. Kirk's eyes widen as he takes in the full sight of Spock's erection, but the look on his face is one of wonder, with no trace of the fear or disgust that Spock was dreading. "It's beautiful," he breathes, reaching out and running his fingers gently up and down the shaft.
Spock gasps at the sensation. "I am… gratified that you think so," he says.
Kirk grins, then shifts backwards and begins to remove his own pants and underwear. Spock sits up to watch; he has seen diagrams of human penises in books, but his first glimpse of Kirk's erection shows that they were a poor substitute for the real thing. It is a deep pink, standing out from Kirk's body at an approximately sixty degree angle. Even aside from the colour it is quite different from his own, sporting a rounded head instead of tapering to a point as a Vulcan penis. But what really captures Spock's attention is the sac hanging behind it, between Kirk's legs. He understands the relative difference in reproductive systems that requires human testicles to be carried outside the body, but it is somewhat… fascinating to be confronted with them.
He reaches out to touch, running his fingers over and around the heavy egg-shaped sacs.
"You like those, do you?" Kirk asks, sounding amused. "Personally I'm curious about where yours are hiding."
Spock pulls his hand back from between Kirk's legs and reaches around to indicate the correct spots on his lower back. He can feel Kirk's fingers exploring the area, and bites his lip as Kirk brushes a particularly sensitive spot. "Hey, I think I found them," Kirk says, both hands scratching gently at Spock's back.
Spock nearly whines. "Indeed," he gasps.
He is not sure whether to be relieved or disappointed when Kirk's hands leave his back. "I'll have to keep that in mind," Kirk says, grinning, then pushes at Spock's shoulders. "Now lie back and let me take care of you."
Spock watches as Kirk slowly moves down his body, occasionally stopping to press a kiss to his skin before moving on. "Do you intend to penetrate me?" he asks as Kirk's lips reach his inner thigh.
Kirk lifts his head, Spock's words having briefly distracted him from his goal. "Is that something you want?" he asks curiously.
Spock considers it. When he read the relevant information in the texts, the idea had seemed unhygienic and distinctly unappealing, but here and now, confronted with Kirk's naked body and the lust and devotion that flows between them, it is difficult to remember why. "I am not sure," he says eventually.
Kirk pats his thigh affectionately. "Well, we can talk about that later," he says. "I actually had something else in mind." He grins wickedly and adds, "You're going to like this."
With that he leans down and takes Spock's erection into his mouth. The sensation of a warm, wet mouth closing around his penis is like nothing Spock has ever experienced, and he can't hold back a moan. Amused satisfaction flows through his connection with Kirk, but it feels so good he doesn't care.
Kirk shifts to take more of Spock's shaft, running his tongue along the underside. Spock digs his fingers into the mattress, breath coming in pants as the pleasure from Kirk's actions builds and builds. Then Kirk makes a particularly adept movement with his tongue and Spock's pleasure spikes, overwhelming him and causing the world to white out for a second.
When he comes back to himself, he finds Kirk has moved back up the bed and is watching him intently. Spock blinks at him, still slightly fuzzy from the orgasm. "That was…" he begins, but has no idea how to finish.
"I thought you'd like it," Kirk says, looking very pleased with himself.
"I am not sure 'like' is a sufficient word," Spock manages. "I was not aware such pleasure was possible."
Kirk's cheeks turn faintly pink at the compliment. Spock reaches out and strokes his face, then lifts his head and looks down their bodies at Kirk's still erect penis. "You require satisfaction," he says, reaching down to touch Kirk's erection with his fingertips.
"You don't have to do that," Kirk says, and Spock looks up.
"I want to," he replies. "You gave me pleasure. I wish to do the same." He looks down again. "But I am not sure how."
Kirk shifts closer, pressing his erection into Spock's hand. "Just touch me," he says. "Like you'd do to yourself."
Spock stares at him. "I would not do it to myself." At Kirk's confused expression, he explains, "Vulcans require the presence of a partner in order to achieve release."
Kirk blinks. "So you've never…." He trails off, looking stunned.
"I attempted it during my… time," Spock admits. "But I was not successful."
Kirk shakes his head slowly. "No wonder you were so impressed with my fellatio skills." He smiles reassuringly and adds, "It isn't difficult. Just wrap your hand around like this-" he moves Spock's fingers into position gently "-and stroke up and down."
Spock does as he says, fascinated by the feel of the skin moving under his fingers. After a few strokes he falls into a rhythm and begins to focus on the emotions washing through Kirk's skin. "Yes," Kirk murmurs, as his pleasure begins to build. "Just like that."
Spock speeds up a little, then, picking up on a stray thought, runs his thumb across the head. Kirk inhales sharply, moving his hips to press himself further into Spock's hand. "Oh, yes," he breathes. "Don't stop, keep going, just like that." Spock notes with interest that his speech is becoming slightly incoherent. "Yes, Spock, please…."
Spock speeds up his strokes again, and Kirk's pleasure peaks and overflows. Literally. Spock studies the liquid on his hand with curiosity, then hesitantly brings it to his mouth and tastes it. The substance has a strange flavour, almost salty, but it is not entirely unpleasant. He has certainly tasted worse things.
He wipes the rest of it off on the bedcovers and turns to Kirk, who is watching him with hooded eyes. He looks tired but content.
"Was that satisfactory?" Spock asks. He already knows the answer, but there is always that one tiny scrap of doubt.
Kirk grins and pulls him down to lie beside him. "More than satisfactory, Mister Spock," he says, wrapping an arm around Spock's middle. "You're a natural."
Spock curls closer, allowing a small amount of his happiness to show on his face. "I did have an exceptionally good teacher," he replies.
"Hmm," Kirk replies, his eyes sliding shut. Spock helps him pull the covers around them. "Remind me to thank him." A smile plays around the corner of his mouth, and Spock wants to kiss it. So he does.
"I believe I can thank him for the both of us," he replies. "Especially since I foresee many more lessons in my future."
"Got that right," Kirk mumbles drowsily.
Spock curls around him, resting his head on Kirk's shoulder, and together they drift off to sleep.
Pairing: Kirk/Spock
Rating: NC-17
Summary: As he and Kirk embark upon a sexual relationship post-V'Ger, Spock worries that his lack of previous experience will lead to disappointment for his lover. Lucky for him, Kirk is an excellent teacher.
Words: ~2700
Notes: Originally published in the KiScon 2013 zine. Thanks to amiss for the beta.
Spock gasps as Kirk pushes him up against the wall of the newly refitted captain's quarters. He has wanted this for so long, even while convincing himself that he shouldn't, and now it is really happening. He runs his hands over Kirk's back as the other man kisses him, wanting more, but unsure how to ask for it. "I had assumed you asked me here to talk," he manages.
"Disappointed?" Kirk asks, his fingers running over a sensitive ear.
Spock shivers, shaking his head fervently. "No."
Kirk pulls back and smiles. "Me neither." He studies Spock for a moment, eyes bright with something akin to awe. "I love you," he says. "Why didn't we do this years ago?"
"I cannot recall," Spock replies. "An unforgivable oversight on our parts."
Kirk's smile widens, and he leans in until they are kissing again. Spock pulls him closer, feeling Kirk's arousal against his own. He moves a hand up until he is circling Kirk's temple with his fingers. He wants so badly to meld them, but he is still not recovered from the meld with V'Ger, and he cannot risk harming Kirk. Not to mention doing further damage to himself.
Kirk seems to pick up on his thoughts, as he pulls away again and takes hold of Spock's hand. He strokes the fingers gently with his own before bringing it to his lips and kissing the palm. "I know it's hard," he murmurs. "But your recovery shouldn't take much longer." His eyes sparkle as he adds, "And then you can bond us."
"It may happen naturally," Spock admits. "If we, ah, continue as we were." He is torn between fear and longing at the idea, but cannot imagine stopping now.
Kirk raises his eyebrows, transferring amusement through his touch. "Well, in that case…." He steps away, tugging on the hand he still holds. "Not to sound cliché, but let me show you the bedroom."
Spock allows himself to be led across Kirk's quarters and into the bedroom. The first thing he notices is that the bed is large enough for two people, unlike the bunks present before the refit. He does not yet have an official cabin, but the one he has been using is not dissimilar to the one he occupied on the five year mission. It is certainly not comparable to this.
"Not bad, huh?" Kirk asks.
Spock nods. "It will take some getting used to."
Kirk grins. "We have time."
Gently he pushes Spock down onto the bed and climbs on top of him. He kisses Spock, a soft brush of lips, then again, more passionately. Spock kisses back, his hands coming up to rest on Kirk's waist.
Kirk's lips move down to his jaw and neck and Spock almost groans, rocking upwards so his hardness brushes Kirk's. Kirk gasps, then runs a hand down to cup the front of Spock's pants.
Spock freezes. He doesn't mean to, but the action brings home to him how out of his depth he is here. He is not totally ignorant; he has some knowledge of what two men can do together, but it's all strictly theoretical, and the idea of disappointing Kirk temporarily paralyses him.
Unfortunately, the sudden tension has precisely the effect he was hoping to avoid. Kirk pulls back in dismay, rolling off Spock to lie beside him. "Am I moving too fast?" he asks. "If you're not ready-"
"I am ready," Spock cuts in. "I wish very much to be intimate with you. However, I am not… that is, I have not…."
He sees realisation dawn in Kirk's eyes. "You've never done this before," he says.
Spock shakes his head. "Not with a man." In truth, he is not sure how much use his fuzzy memories of Leila and Zarabeth would be even if Kirk were female, but at least then he would have some real-world experience to build on.
Far from being put off, however, Kirk's expression grows warm and affectionate. "Lucky for you I'm an excellent teacher," he replies, shifting closer and wrapping his arms around Spock.
Spock leans into the touch, resting his head on Kirk's shoulder. "I don't want to disappoint you," he admits.
"You won't," Kirk replies firmly. He rubs Spock's back and adds, "Try to relax, okay? This is supposed to be fun."
Spock nods slowly, then leans up to press his lips against Kirk's. This, at least, he knows how to do.
They kiss for long minutes, Kirk allowing Spock to set the pace this time. Gradually Spock's confidence builds, and he begins to pull at Kirk's shirt, trying to remove it.
"Okay, okay," Kirk laughs, as Spock's movements become more insistent. "I get your point, no need to rip my clothes." He sits up and allows Spock to remove his shirt, then helps Spock with his own.
Once the shirts are gone, Spock pauses, his attention caught by Kirk's now naked chest. It isn't the first time he has seen Kirk shirtless - his friend is not what one would call shy - but it's the first time he's been free to look and touch and admire.
He reaches out, carefully, then slowly runs his fingertips over Kirk's chest, through the soft hair growing there. He has never seen Kirk with chest hair before, but it suits him. Spock runs his fingers through the hair again, purely because he can, but pauses as his eyes catch on a particular scar - a line, barely visible, running straight across the centre of Kirk's chest. He traces it gently, feeling a familiar guilt well up.
As if sensing his thoughts, Kirk says softly, "It wasn't your fault."
"Yes, it was," Spock replies, still tracing the scar. "I hurt you." His breath catches in his throat as he remembers that day; the overwhelming pain that had gripped him when he thought Kirk was dead, murdered by his own hand.
Kirk takes his hand firmly. "Hey," he says. "Look at me."
Spock looks up.
Kirk smiles and squeezes his hand a little tighter. With his free hand he reaches out and traces a circle on Spock's chest. "Do you remember how you got these?" he asks.
Spock glances down. The area Kirk is pointing to contains a dozen or so tiny scars in a circle configuration. He nods slowly. "I believe I acquired them on Gamma Trianguli VI."
"Saving me from a volley of murderous thorns," Kirk adds gently. "You nearly died."
Spock can see what Kirk is trying to do, but it doesn't allay his guilt. He shakes his head silently.
Kirk sighs. "You need more?" He runs a finger across Spock's arm, tracing a faint line across his forearm. "Stepping in front of a knife meant for me." His fingers move to Spock's hairline. "Knocked out trying to get to me." He runs his fingers through Spock's hair and adds, "That's not even getting into all the times that didn't leave marks." He leans forward and softly brushes their lips together before pulling back to look into Spock's eyes. "I trust you," he says. "And it's time to stop blaming yourself for things that weren't your fault."
Spock nods, swallowing unsteadily, and Kirk smiles.
"Besides, seeing the look on your face when you found out I was alive? I wouldn't have missed that for the world."
Spock can't think of anything to say to that, so instead he leans in and kisses Kirk. After a moment Kirk's hands come up to cup his cheeks, fingers stroking through his hair. Spock's own hands go to Kirk's shoulders, gripping tightly. He can feel his penis stirring in his underwear, slowly emerging from its protective sheath, and can't hold back a moan.
Kirk pulls away at the noise. "Something wrong?"
Spock shakes his head. "Quite the opposite," he replies breathlessly. "It appears I am becoming aroused."
"Oh," Kirk says, smiling. "Well, I have ways to deal with that." The smiles falters slightly as he adds, "I mean, if you want me to."
"I would like that very much," Spock replies honestly.
Kirk grins, gently pushing at his shoulders. "Excellent. Just lie down and let me take care of everything." He begins unfastening Spock's pants, then pauses, suddenly serious. "Tell me if I do anything you don't like, okay? I want this to be good for you."
"I will do so," Spock replies, though right now it is difficult to think of something Kirk could do that he would not like, other than stopping.
He lies back and allows Kirk to unfasten his pants, then shifts so that Kirk can slide them down and off. He experiences a moment of nerves when Kirk does the same with his underwear, wondering what his friend's reaction will be to the sight of genitalia so different from his own.
He needn't have worried. Kirk's eyes widen as he takes in the full sight of Spock's erection, but the look on his face is one of wonder, with no trace of the fear or disgust that Spock was dreading. "It's beautiful," he breathes, reaching out and running his fingers gently up and down the shaft.
Spock gasps at the sensation. "I am… gratified that you think so," he says.
Kirk grins, then shifts backwards and begins to remove his own pants and underwear. Spock sits up to watch; he has seen diagrams of human penises in books, but his first glimpse of Kirk's erection shows that they were a poor substitute for the real thing. It is a deep pink, standing out from Kirk's body at an approximately sixty degree angle. Even aside from the colour it is quite different from his own, sporting a rounded head instead of tapering to a point as a Vulcan penis. But what really captures Spock's attention is the sac hanging behind it, between Kirk's legs. He understands the relative difference in reproductive systems that requires human testicles to be carried outside the body, but it is somewhat… fascinating to be confronted with them.
He reaches out to touch, running his fingers over and around the heavy egg-shaped sacs.
"You like those, do you?" Kirk asks, sounding amused. "Personally I'm curious about where yours are hiding."
Spock pulls his hand back from between Kirk's legs and reaches around to indicate the correct spots on his lower back. He can feel Kirk's fingers exploring the area, and bites his lip as Kirk brushes a particularly sensitive spot. "Hey, I think I found them," Kirk says, both hands scratching gently at Spock's back.
Spock nearly whines. "Indeed," he gasps.
He is not sure whether to be relieved or disappointed when Kirk's hands leave his back. "I'll have to keep that in mind," Kirk says, grinning, then pushes at Spock's shoulders. "Now lie back and let me take care of you."
Spock watches as Kirk slowly moves down his body, occasionally stopping to press a kiss to his skin before moving on. "Do you intend to penetrate me?" he asks as Kirk's lips reach his inner thigh.
Kirk lifts his head, Spock's words having briefly distracted him from his goal. "Is that something you want?" he asks curiously.
Spock considers it. When he read the relevant information in the texts, the idea had seemed unhygienic and distinctly unappealing, but here and now, confronted with Kirk's naked body and the lust and devotion that flows between them, it is difficult to remember why. "I am not sure," he says eventually.
Kirk pats his thigh affectionately. "Well, we can talk about that later," he says. "I actually had something else in mind." He grins wickedly and adds, "You're going to like this."
With that he leans down and takes Spock's erection into his mouth. The sensation of a warm, wet mouth closing around his penis is like nothing Spock has ever experienced, and he can't hold back a moan. Amused satisfaction flows through his connection with Kirk, but it feels so good he doesn't care.
Kirk shifts to take more of Spock's shaft, running his tongue along the underside. Spock digs his fingers into the mattress, breath coming in pants as the pleasure from Kirk's actions builds and builds. Then Kirk makes a particularly adept movement with his tongue and Spock's pleasure spikes, overwhelming him and causing the world to white out for a second.
When he comes back to himself, he finds Kirk has moved back up the bed and is watching him intently. Spock blinks at him, still slightly fuzzy from the orgasm. "That was…" he begins, but has no idea how to finish.
"I thought you'd like it," Kirk says, looking very pleased with himself.
"I am not sure 'like' is a sufficient word," Spock manages. "I was not aware such pleasure was possible."
Kirk's cheeks turn faintly pink at the compliment. Spock reaches out and strokes his face, then lifts his head and looks down their bodies at Kirk's still erect penis. "You require satisfaction," he says, reaching down to touch Kirk's erection with his fingertips.
"You don't have to do that," Kirk says, and Spock looks up.
"I want to," he replies. "You gave me pleasure. I wish to do the same." He looks down again. "But I am not sure how."
Kirk shifts closer, pressing his erection into Spock's hand. "Just touch me," he says. "Like you'd do to yourself."
Spock stares at him. "I would not do it to myself." At Kirk's confused expression, he explains, "Vulcans require the presence of a partner in order to achieve release."
Kirk blinks. "So you've never…." He trails off, looking stunned.
"I attempted it during my… time," Spock admits. "But I was not successful."
Kirk shakes his head slowly. "No wonder you were so impressed with my fellatio skills." He smiles reassuringly and adds, "It isn't difficult. Just wrap your hand around like this-" he moves Spock's fingers into position gently "-and stroke up and down."
Spock does as he says, fascinated by the feel of the skin moving under his fingers. After a few strokes he falls into a rhythm and begins to focus on the emotions washing through Kirk's skin. "Yes," Kirk murmurs, as his pleasure begins to build. "Just like that."
Spock speeds up a little, then, picking up on a stray thought, runs his thumb across the head. Kirk inhales sharply, moving his hips to press himself further into Spock's hand. "Oh, yes," he breathes. "Don't stop, keep going, just like that." Spock notes with interest that his speech is becoming slightly incoherent. "Yes, Spock, please…."
Spock speeds up his strokes again, and Kirk's pleasure peaks and overflows. Literally. Spock studies the liquid on his hand with curiosity, then hesitantly brings it to his mouth and tastes it. The substance has a strange flavour, almost salty, but it is not entirely unpleasant. He has certainly tasted worse things.
He wipes the rest of it off on the bedcovers and turns to Kirk, who is watching him with hooded eyes. He looks tired but content.
"Was that satisfactory?" Spock asks. He already knows the answer, but there is always that one tiny scrap of doubt.
Kirk grins and pulls him down to lie beside him. "More than satisfactory, Mister Spock," he says, wrapping an arm around Spock's middle. "You're a natural."
Spock curls closer, allowing a small amount of his happiness to show on his face. "I did have an exceptionally good teacher," he replies.
"Hmm," Kirk replies, his eyes sliding shut. Spock helps him pull the covers around them. "Remind me to thank him." A smile plays around the corner of his mouth, and Spock wants to kiss it. So he does.
"I believe I can thank him for the both of us," he replies. "Especially since I foresee many more lessons in my future."
"Got that right," Kirk mumbles drowsily.
Spock curls around him, resting his head on Kirk's shoulder, and together they drift off to sleep.