area 51
a girl made it into the building with a small group. they take a moment to catch their breath, and then split up to cover as much ground as possible. our girl passes a few boring rooms like supply closets and labs but then manages to find a room that while unlocked, is very clearly marked with "do not enter" and "danger: hazardous!" signs. she guesses it's just a deterrent put up so only those allowed in know it's safe to enter. she finds herself face to face with an unassuming, roughly dog-sized blob of flesh? she goes to investigate which causes it to "wake up", extending multiple tentacles and release an aphrodisiac gas in the air. she gets a big ol lungful before she can react, but still tries to make it out of the room. the gas hits her too quickly and before she realizes it she's on her knees with her hands down her pants. the alien then proceeds to have plenty of fun with her as she gives in more and more to it's control

barmaidification:
an adventuring man, probably mid 20s? is both down on his luck and low on cash. trying to fix the former problem, he goes to a tavern known for serving both fine ale for people to drink and sultry barmaids in revealing outfits for them to get rather friendly with, depending on how late in the night it is. he ends up running a tab much higher than he can pay off rather quickly and sullenly agrees to work for the tavern to pay it off. it's something to do, at least! the only spot they have open, though, is another barmaid. they're in rather high demand it seems, and he has no choice but to agree. he doesn't really care for the outfit at first, but once he puts it on he doesn't really mind all that much. in fact, he has quite a lot of fun serving drinks and getting felt up and played with, and even being called a girl!  he passes it off as it just being new to him, so of course it would be interesting. after his first night one of the other barmaids approaches him and brings up how much he enjoyed the work. he tells her the same thing he told himself, but she suggests maybe there's another reason, one that she also felt and tells him that she is trans herself. that's when it hits him that he (or, she at this point) had never considered she could be a girl and thanks the other barmaid. (if there's room there can be a sex scene between these two? but it's ok if there isn't.)
now this new trans girl dives headfirst into her job, to the point where she asks if she can stay after her bill is paid off (the answer is of course she can!)