@Eddie Davidson
I am looking for a variation on mind control.
Competent mind controller would have more involved goals than fucking around. Not that they would give that up, for shits and giggles if not otherwise. The controlled person may not ever learn the real goals either, but still may tell their story, once abandoned or otherwise. Now flip the genders, making it a girl in control.
So... well, this may not fit the topic title directly, nothing I could possibly suggest might as I don't understand and mostly despise humiliation (while nurse a kink for shy and gratuitous public nudity, but some light embarrassment is most there should be before it's perceived positively), but should be easily adaptable if need be; feel free to use however you see fit:
Shy, lonely, reclusive, maybe even antisocial guy. I imagine him living with his parents, but could be any form of shared living or even alone although that's less interesting.
So one night he's really tired (maybe even had a little drink too) and watched television in living room until fell asleep, woke up, wandered up to his room, disrobed without bothering to turn light on and crawled in his bed. Probably wondering a little why the blanket not spread but bundled up on the far side.
Well, turns out the blanket's in use. As he pull it a girl rolls onto him with a sleepy little whine, and cuddles on his shoulder, happily asleep. And he's going, what the fuck, and for his life can't think who it could be, but what the hell, just goes to sleep too like that.
Next morning goes surreal. The girl behave as if she belongs there, but slaps down his attempt to take advantage of her, going with "we don't have time for that." And his parents (or whomever he cohabitate with) act like it's perfectly normal Eileen's there, and with him, and seems to know her well. And yes, that's how our guy learns his new bedmate's name, from how others call her. And other students at school (or colleagues, or whomever he's forced to hang out most days) are all the same. It's like he's only one who's not aware he had been an item with the strange girl since forever as it seems. And wondering a bit what he's doing he himself kind of fall in the role, instead of making any fuss; she's a hot chick after all, and all. But he's also absolutely sure the girl wasn't there yesterday.
Well, by the end of that night he does in fact masterfully seduce his new girlfriend, wondering why he does all that shit all the way, but the sex at the end is mind blowing.
And so he kind of accepted it's how things is now. And she's doing crazy things and nobody seems to mind, and she seems to have a way to get people to do what she wants, and she surely knows how to have fun. And his own social life has definitely changed for the best, he suddenly has ton of friends and visit places, and girls flirting with him and he seems to suddenly know how to enjoy it, even if he's not even that interested since he does have Eileen.
It wouldn't lasts long though. Two-three weeks or so, I think, at least a week and no more than couple months at the extreme. Then she disappeared, just as suddenly. And of course nobody knows a thing. Eileen? Who's Eileen? Doofus, you had a girlfriend? How I didn't I know? Worse, he's himself like out of water. The new social skills he seemed to have discovered are gone too, apparently. Well, not completely perhaps, but it's hard now. Maybe his life is better on the whole, maybe he even had found a job, or better job, the new friends still there (as long he'snot screw it up) or whatever, but it's hollow without Eileen. And world seems to have conspired to prove he had imagined her. He's not! However, whatever little evidence he has, it's circumstantial or dubious.
Some not too long time after, a month or two, or half a year till two, maybe, and probably out of town he suddenly see her. Sure she claim he's confused her with some, but he blurts out something rather convincing to the contrary, and then she just as suddenly switch to trying to make it like she had been with him all the time. And the people with her swallow it without a hitch, but it sure doesn't work on him.
Or even:
Let's say, Johnny, our typical nerd who had no sex life in high school but isn't necessarily totally naive or lacking self confidence, goes to college determined to catch up on that in the new environment.
Some new friends suggest him to try Mandy if he's desperate to get laid -- she's rumored to be easy. He does get a date, but doesn't expect much, and it seems not to go very great indeed, until, something clicks and the girl becomes... almost rather aggressive. Everything happens, and all is great, kinda. But it was to be expected, or wasn't it? Turns out it wasn't, soon afterwards Nancy freak out and leave in a huff, claiming he must have drugged her or something. Well, confusing, but just a weird slut, right?
Taking that as a learning experience it was, Johnny ask out Nancy next. The date goes much smoother, but even as the girl seems ready for anything by the end, he decides to be a perfect gentlemen and not try anything too abrupt. And it does win him another date, and it soon seems they picked up right where they ended, and Johnny accept his charms are irresistible and Nancy doesn't even freak out afterwards. Not right away, at least. They're fucking every chance they can get for a week or two, until Nancy dumps him, rather abruptly, and without explanation.
Not quite heartbroken, Johnny asks out some other girls soon after, but gets a firm rebuke every time. Turns out, Mandy is spreading nasty rumors, telling everyone how she's been all but raped, and Nancy isn't quite defending him either. Problem is those two are at the middle of the social furball, and so Johnny is plenty tainted.
Oh well, the field is vast, and there's no real hurry anymore. So why not try Alice, a shy, quiet and buttoned up to the chin church girl, and see what develops going as slowly as he could. And they get to third or fourth date until... the change of Alice's behavior is so abrupt Johnny outright asks, "who are you?" and gets an equally direct answer, a name unheard of (pardon me making up something potentially unpronounceable) Yeinualei.
Yeinu (now that appears to be an actual name, actually) insists Alice is still right there and fine, but she's horny and tired of bullshit. Yeinualei is frivolous, frisky and lewd, even rude, and practically blackmail Johnny to have sex with Alice -- she says, she can go to the bar and get however instead, and so on. Johnny decides he's dealing with a split personality and can't quite resist the temptation to play her game, but still try to negotiate consent from Alice, as confusing and unconvincing as it may be, and do what he can to make it great for her, disregarding Yeinu's impatience.
Alice does freak out afterwards, as expected. She doesn't blame Johnny about anything however, even accept his soothing, but claim (correctly!) that she's been possessed. Johnny call bullshit on that, and gather all he (doesn't) know about split personality in explanation: how Alice was so incredibly sexually repressed she had to invent Yeinu to let go of her own desires and so on. Alice doesn't quite buy that Yeinu could be her own creation, but admit that she can't quite define borders between them. She firmly refuses to seek professional help though.
A weird triad relationship develops, Johnny isn't too fond of Yeinu even if she's fun in her own way showing up only when Alice is horny, nor Alice's original religiosity, but increasingly falls for the rest of Alice, more as his and Yeinu efforts to corrupt Alice succeeds -- involving much of gradual exhibitionism among other exploits. A careful reader may notice that Yeinu has intimate knowledge of Johnny's relationship with Nancy, but Johnny apparently doesn't; he also genuinely believes Yeinu will go away if Alice succeeds in integrating her.
Kelly is Alice's friend from a similar background who's mighty affected by the changes in Alice's relationship and behavior changes. She keeps hanging around with her however, and Johnny, by necessary extension, and one day she decides she's ready to loose her own virginity. Of course, that fits perfectly with Alice's corruption program, and it becomes a recurring thing. Johnny still doesn't (but a nitpicking reader eager to point out editorial errors may) notice how Yeinu drifts between both girls in what is effectively three body foursomes; Kelly does, but is okay with it believing that is exactly what she was subscribing to, and keep that to herself, for now at least.
Mandy keeps up her slander of Johnny, but his girlfriends are immune to it. There might or not be a sudden hate fuck episode that only makes Mandy more mad and confused.
Then... for whatever reason Johnny has to be split from his girlfriends for some while. Perhaps, during a break goes home alone as girls should make their own appearances and not quite ready to present him to their ultraconservative families. And his high school crush is right there somehow, and they getting caching up, and... Yeinu shows right up in her, shocking Johnny out of his pants, or at least trying. Confronted, she outright proposes that Johnny can have sex with any*body* he might desire, with her.
...that's the end... of the beginning?