After two days wedged up your butt as you hung from a tree, Kevin the warlock-jockstrap is not just smelly, but slightly bloody as well.
The orderly at the hospital cuts it off of you, severing the straps and with it some portion of Kevin's fused and transmuted anatomy, blood beginning to ooze from the cut cotton. "Get that in a hazmat bag quick," the head nurse tells the orderly, "and take it down to the incinerator!"
You've fallen asleep by this time so you don't see the jockstrap twisting about like it's possessed as the orderly stuffs it in a bag then takes it down to the incinerator.
Kevin has been cursed to only be able to use his warlock powers for the benefit of his wearer, but as the orderly is now carrying him, this seems close enough. Kevin repairs himself and cleans himself, then teleports himself onto the orderly's crotch, sending the man's underwear back into the incinerator-bound bag. After all, a change of clean underwear is certainly for the man's benefit and pleasure.
Of course, what is to the benefit and pleasure of someone to the mind of a kinky warlock cursed into a jockstrap is a highly relative thing, so Kevin decides to turn the orderly into a sex-crazed hermaphrodite. The man's chest begins to swell with new breasts, perky one, which s/he begins to fondle as a vagina forms just above the penis, which inserts itself into it as the hermaphroditic orderly begins to fuck hirself right there in the hallway, her magical jockstrap vibrating as Kevin orgasmed from all the pleasure coursing through his kinky cotton self.
Kevin is gaining extra pleasure from the spells he left on you as well, since with Miles inexact wording, he'd made it such that Kevin would also feel pleasure whenever you yourself felt pleasure, so the doctors and nurses back in your hospital room are not only amazed that you survived your two-day cliff-side wedgy with no ill effects, but more so that you're a chronic masturbator with a three-foot cock which you are fondling and nursing from in your sleep while you dream of sucking Playboy bunny tits while they give you an amazing blowjob.
Won't you be surprised when you wake up.