Her dick is probably bigger than yours
Title: Her dick's probably bigger than yours
Author: jellybgood
Universe/Series: Reboot AU
Rating: Adult (NC-17)
Relationship status: First time
Word count: 1531
Genre: pwp
Tropes: alien sex, genderbending
Warnings: liberal use of fannish queer theory and inaccurate sex
Summary: Jim loves the ladies, but he prefers men in bed. That's okay, because girl!Spock is totally gonna convert him with her sex god(dess) powers.
Notes: Title taken from a comedienne's joke about the perfect girlfriend who turns out to be a tranny (but I can't remember who/where I heard it from!) Written for kink_bingo 'gender play.' First time writing for ST fandom and I just wanted to prove to myself that I could actually write something with these characters. Also, this is unbetaed so feel free to suggest corrections.
For all that Jim Kirk is an infamous ladies’ man - he’s actually gay. The fact that he tells Spock this as they’re sprawled on top of each other in her bed and she’s encouraging him to put his hand up her skirt doesn’t lend much to the credibility of his statement.
“I’m afraid that I misunderstand,” says Spock, nibbling at the edge of a rounded ear. “You are feeling exceptionally happy at this time?”
Kirk melts at little when she extends her tongue to lick around and behind his ear. “Yeah, but that’s not what I meant,” he huffs. He is inwardly thrilled to realize that Vulcans have longer tongues than humans, and he’s already wondering what he can convince Spock to do to him with that giraffe tongue of hers. “I’m gay, as in homosexual. Attracted to males.”
“I am not male,” says Spock, wrapping a leg around him and shifting her hips up so that his hand slides forward and into-yeah, not male, Kirk thinks, rubbing his fingers against the hairless mound between her thighs, then probing gently until the tip of one finger slides into a hot, wet cavern.
“I know. Never did this with a girl before,” he confesses, pressing close-mouthed kisses along her neck and continuing to finger her. Spock squirms beneath him, alternately nuzzling and licking the side of his face.
“You have never had intercourse with another female?” murmurs Spock. Kirk thinks that she sounds a little too smug at thinking she’s probably about to pop his hetero-cherry.
“I’ve fucked women,” he says, pausing when Spock growls and he feels their shared lust spike, “and I love flirting with a good looking lady, but they’ve never gotten me off like being with a guy.” He hasn’t stopped fingering Spock and he silently marvels that he’s actually enjoying it for once. “But you’re you, Spock. I think I’d get off on you even if you were a plant.”
“An interesting scenario which we may explore another day, Jim,” says Spock, gently pushing him away and putting distance between them. Kirk stills his hand, knuckles deep inside of Spock’s cunt. He tilts his head into Spock’s hand as she caresses his cheek. “I am the exception to your sexual preference for males. However, may I conclude that you would derive more sexual pleasure from our coupling if I were male?”
Kirk is temporarily blown away by the mental image of a male Spock: the same bowl-cut hairstyle, angular features and impressive height with an even flatter chest, a firm instead of concave abdomen, and a glorious green penis that would-
Spock must have received the same mental image through her touch telepathy because she quirks her mouth in a Vulcan smile and says, “You wish to experience penetrative anal sex with a Vulcan partner?”
Kirk almost laughs at how nonchalant and downright amused Spock seems when she says that. The last telepathic woman he’d slept with hadn’t been nearly as understanding that he’d been simultaneously fantasizing about taking it up the ass.
He lowers his head to kiss Spock. “We could get a dildo,” he suggests hopefully.
“Unnecessary,” says Spock, allowing him to kiss her. Kirk has no time to be disappointed, or even think about a back-up plan involving that wonderfully long tongue of hers, when she grips his arms and flips them, dislodging his hand, pinning him to the bed. “I will penetrate you if it will please you.”
“Um, what?” says Kirk. He shifts his hands to hold her hips, slides them up and over her buttocks and under her layered shirts. She wasn’t wearing bra. Didn’t Spock believe in wearing underwear at all?
“Vulcans traditionally do not wear undergarments,” says Spock, grinding against him. “But I would not be opposed to the edible chocolate underwear from T’Pria’s Secret.”
“First anniversary present, got it,” says Kirk, grunting as Spock just ruts against him. Her alien strength means it’s easy to do whatever she wants with him - hold him down, turn him over, bend him over a nice and sturdy desk and fuck him six ways to Sunday. Kirk can tell that it’s going to be pretty awesome banging Spock; almost all the physical perks of being a guy, without the macho posturing and emotional unavailability.
The continual slamming of their pelvises together is starting to get painful and Kirk’s more afraid of Spock’s narrow hips breaking his than the other way around. His dick feels harder than it’s ever had with other women and if they’re going to do it at all tonight there’s no better time. He slides his hands down Spock’s back to grip the ends of her shirts and pull them up and over her head. He goes for the skirt next but she lowers her arms and pins him back down.
“Unnecessary,” she says again, a little breathlessly. “You only need to remove your pants.”
“Keep the shirt on, huh?” he says, working his belt open and lowering his fly.
“I find the yellow to be arousing,” she says, reaching down and simply ripping the pants off his body. Kirk thinks that Spock has finally reached the end of her patience and is going to get down to business now. He’s totally fine with laying back and letting her do the work; he’s always enjoyed being the laid-back bottom type.
He’s confused when Spock sits back and rearranges them so that she’s sitting between his legs. Then she puts her hands under his behind and pulls him up, spreading his legs. She pauses and, panting, asks, “You wish to be penetrated, yes?”
“Spock, what are you-“
He silences himself when he realizes that there is something very different going on here than there was a few minutes ago. Something large and pulsing and wet is nudging against his ass, seeking - no, scratch that, finding his hole. And it starts to slide in, already lubricated and just oozing more slick to make its entrance easier.
“S-spock!”
“Relax, Jim,” urges Spock, petting his stomach and kissing him. She undulated against him and he felt that thing move even further inside him.
“God, Spock, is that you?” he asks.
“Yes, I converted my vaginal cavity into a penile apparatus through a concentration of muscle control and blood flow redirection to permit anal penetration.”
An alien pussy that can change into alien cock, holy shit-
“Oh my god, I love Vulcans,” says Kirk, grabbing Spock tightly and deepening their kiss until he almost blacks out from either lack of oxygen or the sheer awesomeness of Vulcan sex powers.
Spock kisses him with her mouth and fingers and fucks him so deeply that he comes with his dick trapped between their bodies, and seeing his semen splattered over Spock’s small pert breasts while he can still feel her inside of him is possibly the hottest thing he’s ever experienced in his life.
“This is only the first experience of many, Jim,” Spock says, and Kirk just about breaks right then and there.
XXX
Kirk had been ready to change his sexuality to Spock-sexual before last night. Being with a woman had never been as satisfying as being with a man, and then Spock was a category in and of herself; not just physically but mentally stimulating as well. And then they’d actually had sex and Kirk was still trying to wrap his brain around how he’d lucked out on that one.
“If you can give yourself a dick, why don’t you always have one?” Kirk asks as he lies on his stomach in bed, watching Spock engage in unintentionally erotic yoga-like poses on the floor as she removes her leg hair with a laser razor. “You could pass as a guy if you wanted.”
“I have no desire to present myself as male to others,” says Spock. “Firstly, I am biologically female. My body produces ovum, not semen. While I can modify my genitalia through force of will, it is still an unnatural state for me to achieve. Perhaps you didn’t notice that I cannot even ejaculate in the same manner as you do when I penetrated you.
“Secondly, it is socially advantageous for me to be female, especially in an environment dominated by human males.”
“Not a feminist at all, are you?” Kirk chuckles. Spock raises an eyebrow in his direction as she sets aside the laser and stands.
“Thirdly, I feel satisfaction being female. I feel desirable,” Spock says, sounding almost defensive at the end.
This is a confession, Kirk thinks. In another universe, a completely male Spock might not have been as comfortable with his body. He might have been discriminated against more for being alien without the tempering of gender-bias induced politeness. He might not have been as confident in himself to initiate a relationship with Kirk.
“Girl power,” says Kirk, giving her a cheesy smile and a fist pump. Spock smiles at him through her eyes. He feels that tingle that he used to get from eye-sexing a hot guy and now gets from mere eye-contact with Spock. Looks like he’s going to have to hack the medical records and make Spock-sexual a legitimate sexuality after all.
@ kirkspock