The Bad Part of Town- A young woman is out and about, when she's pulled into a strange, dark, modern fantasy parallel of the real world. It could happen a myriad of ways- she could take an unfamiliar subway car that transports her there, be chased and ravaged by a monster or group of strange folk, get lost in an alley, assaulted by something only to wake up somewhere else, pulled into a storm drain by a tentacle monster, a monster under her bed or from in her closet drags her away. Whatever really, or any combination, there's options. Once on the other side, she would find herself alone, unsheltered, and more or less broke in a world that's only slightly familiar. She could make her way in the world a while, or get linked up with a more permanent character, whether she wanted it or they claim her.
The Raid- This is more traditional fantasy setting, be it original, fandom, or made up as we go. You would play a common village girl, a peasant, living a dull life in a nameless village, but all that changes. One snowy evening, a horde of beastmen/orcs/bandits/barbarians attack, razing the village, killing the men, and taking whatever women and children they don't also kill. Originally, come morning your gal would wake having been utterly ravished by the aggressors, cold, naked, and alone in the snow, in the smoldering ruins of her village. From there, she would pick herself up and try to make her way to the nearest settlement, doing everything in her power to survive, only to realize once she's there that there is little pity for her, and her struggle is only beginning. Alternatively, she could be taken by the group and used to their heart's content, rescued by a band of adventurers, or found by a lone individual, friendly or otherwise..
Tavern Wench- You would play a young girl living in a small trading town. I was thinking she would either be an orphan who was taken in by the Innkeeper as free labor and something tight to warm his bed, or the daughter/sister of the innkeeper, who uses her as free labor and a pretty little thing to mount. Customers could get quite handsy too, if you liked. Either way, she's very unsatisfied with her life. So, when an adventurer, mercenary, or small group comes through... she finds herself taking a liking to them. Regaled by their stories, impressed by their feats. Their scars. She noticed those when she was beneath him, but she didn't even mind that too much. She's dismayed when he/they go to leave, and for once in her life, she follows an impulse. She either stows away in the group's wagon, asks to join them, or stalks the lone adventurer on his way out of town, revealing herself once they make camp. They're unsure about letting her join, but, the prospect of such a lovely, tight thing to wear out does much to sway the decision.
This could easily be combined with The Raid, also, if that might interest you.
It's Not Harry Potter- But it is a modern school for mages, those gifted with the potential of magical ability. It's a boarding school on a dreary New England island, surrounded by all sorts of creepy and eerie things. You'd play a new girl, facing the trials and tribulations of school, but with magic and monsters and things. Loss of virginity, innocence, lots of sneaky head, some fun magic options, naughty teachers, sexually aggressive bullies, cult like cliques that might actually be cults, all that jazz. I would play a fellow student, perhaps a teacher or some supernatural thing, or multiple characters, taking a GM-style role.
The Deal- A young woman, whether an amateur witch or an earthy gal interested in spirituality and wicca, perhaps a girl with slight psychic power, finds herself in league with a demon, somehow or another. Perhaps she summons it, or it finds her- it's bound to an item she finds or purchases, or she meets it casually somehow. She wants so much to be better at what she does, to become more powerful. And he can do that for her... all she needs is the corrupt essence of his semen to grant her more and more power... but at what cost to her, as he body becomes a receptacle for his cum, lust, and dastardly machinations?
The New Job- A young woman gets her first summer job, working the register and café of a local bookstore. The owner is a rather cool, young guy that seems friendly enough. While snooping around the store however, she stumbles into his laboratory- and what a sight it is. All sorts of esoteric and arcane things litter the room, displays that defy physics and couldn't appear to be anything other than... magic. Her humble employer is a sorcerer, as hard as that is to take in. While snooping around, she disturbs something that was meant to be locked away, and finds herself possessed by a succubus. She's shocked, and alienated, and horny in a way she really hates. When she's found by the mage, he's clearly inconvenienced and disappointed, the girl having seen far too much to be let go. Begrudgingly, he takes her on as his reluctant/unwilling assistant, and has few qualms indulging her in the urges she so fiercely craves.
We can skip the succubus part, should you prefer a story centered on the mage and a normal girl, or something else can happen to her, whether it instills a little mysticism in her or not.