"What would you like to be? Centaur? Satyr? Minotaur?" The headmistress asked you. "Well, uh. None...actually..." You say, rubbing the back of your head? "Well, you must choose something, or else I'll have to deny you access into our school." She spoke to you in a stern voice. "Well, actually. Transforming me won't be nessessary. You see...why don't I just show you."
Your body began to give off an intense light, forcing the headmistress to look away. With in that light, all your clothes were vaporized as your skin became red scales. Your whole body was covered in these scales, while also buffing you up in the process.
However, from you neck all the way down to your crotch, the scales turned black and became softer. Speaking of your crotch, it quickly changed in a moments notice, but disappeared underneath the black scales.
Your legs and feet snapped, repositioning themselves so you were standing on the balls of your feet. Your five toes shrank into three as your nails became thick, white claws. Pressure near your rump began to form; soon leaving as a tail came shooting out of the spot.
Next were your hands. The fingers grew together, leaving you with only four on each hand as, like your toes, thick claws grew on them as well. Pressure began to build up as wings grew out of your back, stretching, stretching, stretching, until the were big, beautiful, ruby colored dragon wings with black webbing.
Lastly was your head. Your hair fell out as two white horns began to grow from your skin and curve slightly. Your mouth and nose began to stretch out into a medium sized muzzle with a small horn on the end. Lastly, your ears changed to look more like find; but still capable of hearing.
The light vanished. The headmistress finally got a good look of yourself; your real self. She looked you over, slightly impressed with your body. "Well? Does this work?" You ask her, your voice rougher, but, pretty much the same. "I suppose, but, you ARE the only dragon here. Oh, and don't worry about clothes." She added in quickly. "Only some of the staff wear them, everyone else is nude. By the way. What happened to..." She asked, pointing toward your nether regions. "Oh. It hides itself underneath the skin; and only comes out if I need to pee, or if I get hard...heh heh...that last bit's kinda why I'm here..." You say, blushing. "Don't worry. A lot of students do. But, don't feel embarrassed when it happens." You nod. "Alright. Here's your room number-I do believe your sharing it with a Minotaur-and your schedule." She said, handing you a two pieces of paper. You nod while taking them, while she leads you to your room.