Unethical magic friend who uses you to solve their problems without asking you or considering your comfort
They ran out of milk for their morning coffee? They snap their fingers and suddenly your tits are massive and leaking milk. They take what they need and don't bother changing you back until they remember hours or days later, even if you try to remind them they just wave you off saying 'sure, sure, I just need to finish working out this summoning circle' and get distracted again
Sometimes they read something in a book that gets them horny or there's something they couldn't figure out, or they just pass someone in the market who takes their fancy, so guess who's helping them recreate it? You lose track of the amount of times you've been turned into the current object of their desires-- you don't even remember what your original hair colour was at this point, though you think you're mostly the same as you were when they change you back... but, enough subtle differences over time can build up...
Not to mention the times you've ended up with tentacles or horns or fangs or a foot long tongue, genitals of every configuration, or been transformed into slime and used just for their pleasure, or, more humiliatingly, been used in some test or experiment, or used to get spell ingredients
You would leave, you think, even if it didn't usually feel so good you lose control of yourself, but you didn't realise how binding a mage's "friendship bracelets" were when you first accepted it when you became friends, and now even if you do go anywhere, they can summon you back without trouble
They just conjure you some souvenir or some kind of 'treat' if you complain, and you feel your cheeks flush with the patronising nature of it. None of your complaints are ever taken seriously
Sometimes they'll summon a demon or other creature either for information or for some task, and you've ended up being used as payment or to placate them. You start drooling and going weak at the knees whenever you smell succubus milk or incubus cum from the amount of times you've been exposed to it already-- you're honestly worried it'll become an addiction before too long...
The one time you tried to sabotage one of your friends spells, hoping they'd get a taste of their own medicine, and while at first it was satisfying seeing their look of panic when the magic went awry, it didn't last long...
When you looked at their spell book and saw they were trying to create an armour spell as strong as dragon scales, you figured out just what your interference had caused, watching those glistening sapphire scales spread along their growing, shifting limbs, long claws growing in, a tail stretching out behind them, horns and wings starting to form
Unfortunately, your friend was still conscious enough to realise it was you that had caused the issue, and they had no qualms about 'punishing' you for it
Increasingly they grew larger and stronger than you, long maw full of sharp fangs and a wicked tongue grinning as they pinned you down under one paw. The tongue that shoved itself inside you was larger than some of the cocks you'd taken before, making you squeal and writhe, body shaking when the edge of claws sent little trickles of blood down your thighs and sides. They pressed you down harder into the floor, growling like a thunderstorm and started fucking their tongue into you. Suddenly, their haunches were over your face, their serpentine body much more flexible and longer than their human one, and your eyes widened at the sight of the cock hanging heavy and flushed, pushing past the split of scales between their legs
Even trying to keep your mouth closed didn't save you, your draconic friend simply smothering you with their cock until you were forced to take a breath, and after letting you get a little air, they took the opportunity to ram their cock straight down your throat. You can't fight back at all as they fill you from both ends, feeling like a toy being hollowed out
Their cock is covered in ridges and the slick confines of your throat drag against them in a way that, from what you can still manage to piece together due to the lack of consistent air, must feel good. They even get their tail wrapped around your throat, making your watering eyes roll up as they tighten their hold
Thankfully, they must have pulled out before the lack of air completely did you in (though you have no way to tell, perhaps they could still cast necromantic magic in dragon form?) but you come to in fits and starts, finally piecing enough of yourself together when you're being held in both of their front paws, your hole stretched and leaking around their cock as they bounce you up and down its length
From the way your belly sloshes, and how sticky your legs are (not to mention the rest of you, you assume), you can guess they've already cum in you a few times while you were out cold
When the draconic mage finally finishes with you, you're left slumped over, face half laying in a puddle of cum and you don't think you'll ever not smell like it or if you'll ever taste anything else again. You don't know if you can even talk any more from having your throat so thoroughly fucked. Not to mention if your holes will recover after being stretched out and absolutely ruined on that massive dragon cock...
Of course, leaving them a dragon doesn't seem like a good idea for anyone. Once you get enough energy and brain cells to rub together, and manage to clean up a bit, you get herded over to their spell book. They eventually nudge you and manage to gesture, growl, and, at times, roughly manipulate you, until you can brew a potion to change them back
Once they're back on two legs? 'Well, that was fun, wasn't it?'
