"Ready." You said, simple and to the point at the fairy nodded, flying around you and trailing light behind her that floated around your body before she flew away a few feet.
"Allow my magic to awaken your soul; change you down to the bone, reveal the truth of your soul and be reborn that here you dwell; once concluded is this spell." The fairy recited as the light exploded around you, starting to change you.
Your clothes were torn apart just after the light encompassed you fully, leaving you butt naked as the changes started. Your arms started to shrink as you looked at them and help them in front of you, your fingers melding together as your arms shrunk into your shoulders, leaving you without arms as she your shoulders crashed inwards, making them feminine in appearance as your arms finished shrinking, your body looking like it never had arms in the first place as the changes continued.
Something then formed on top of your head as your hair grew longer, without arms to check what it was you could only wait as whatever it was grew, and grew, until, it was larger than your head and you got a good look at it. It was a mushroom cap, a red mushroom cap to back exact, at it was like a hat attached to your head as the changes continued.
You groaned as your legs melded together into a round blob, which you recognized as the bottom of the mushroom... thing you were becoming, as they finished melding your dick started to shrink, you blushed as it shrunk away into your body, alongside your balls as a small opening formed where it used to be, your new vagina as you realized that yes, you were going to be female.
Right after that revelations your body started to change again, forming an hourglass figure above the blob that used to be your legs as your belly button smoothed over, your nipples growing sensitive as you blushed even brighter, your new boobs growing until they were a nice and large C cup as you started to shrink. You shrunk until you assumed you were about the fairy's size, and with a slow hesitance you looked at your new body, as you were now mostly mushroom and part girl.
As the light died down the fairy floated over to you and floated around you as you blushed, realizing you were naked in front of her as she clapped her hands. "You're a cappie! I haven't seen one of those in a long time." She said happily as you tried to hide your boobs by turning around, still blushing. "Hey don't be shy... sorry about what you've become if you don't like it." The fairy apologized as she turned your head towards her. "I... actually feel right like this. I don't mind not having limbs nor being a girl now... but how am I going to take care of myself?" You asked, scared for your life as she tried to hop to turn around, giving a sigh of relief that you could at least move, if very slowly.
"I could take care of you, I mean, if you you don't mind. Cappies are fair folk after all." The fairy said as you cocked your head, turning your mushroom cap in confusion. "Fair folk?" You asked as she nodded. "Fairy creatures, Cappies, Fairys and other creatures are fair folk." She said as she realized something. "Hey what's your name?" She asked as you raked your brain for an answer.
"Uh... I... can't remember." You said, but for some reason it didn't bother you that you couldn't remember your name. "Figures... Cappies may be fair folk, but they aren't given names by nature. I'll just call you Cappy then alright?" She asked as you nodded. Better then nothing you assumed. "Alright, hang on tight." She said as she floated above you, grabbing the edges of your mushroom cap as you cringed. "Hey watch it, I can feel that." You complained as she giggled. "Sorry Cappy." She said as she took off carrying you to who knew where.