As Sean doodles, you notice he starts to grow larger, and for a moment you wander if he was somehow changing back to normal. That only last though until you see that his clothing isn't going to fit him anytime soon, and that everything else in the room is getting larger as well, including your own clothing.
You're getting smaller, or more likely younger!
Your own pants fall to the ground, and you end up tripping over your own shoes, falling out of them and your socks.
At this point, you're about the same size as Sean, but you're still shrinking.
Eventually, you're so small, that your shoulders aren't wide enough to hold your shirt up, and it falls to the ground leaving you completely naked.
You still shrink, and you find yourself wandering if soon you'll be a baby. However, just as the thought stops, so does the shrinking. You can still stand on two legs, and you feel as if you're at least beyond the diaper days.
"Well?" Sean says, grinning. "Cause what I did?"
"You made me younger, even younger than you.... I couldn't be older than three or four."
"Three" He says.
"I'm so small, and tiny..... Oh, I'll get you back." Then you decide to draw......