Our TG Caption

You tell your roommate the truth and he resumes :
"- So, you got a magic pencil and the first thing you thought of was to draw on my ID card ?
- Yeah..."
You feel shameful but your roommate says :
"- That's stupid ! Man, you may be able to brought weird creatures to life !
- Wait... You're not bothered by the fact you're now a girl ?
- I can fix that later ! Give me the pencil and a paper !"
You immediatly give him what he asked. He always have loved to draw and has great drawing skill. He start drawing something. You look at it and see that he's drawing a winged dog. When he finishes his drawing, the winged dog comes to life ! Your roommate tells you :
"- You see, that's an incredible power you got !
- But I don't know how to draw.
- I can teach you.
- That would be great.
- But, for now, I will use the eraser to turn myself back. I can draw you a girlfriend after that if you want.
- Be careful to not erase your head."
Your roommate start erasing your drawing carefully.