I'm thoroughly amused at how they keep polite smiling at each other.
[Oooh, that's playing dirty, Sebastian. Chocolate is most assuredly his kryptonite and Sebastian has just offered him rich layers of gooey goodness. Ung, so torn. WWTD? He wouldn't let the young master have that much sugar either, for one. And yet, here we are.]
But... [Longing look at the rides cresting in the distance, beckoning to him with their gallantly waving flags.] I would really like to go. I've never been to one before. Can't you just bring the cake to me?
[Gosh, look at what you're making him do, he's starting to break out in puppy eyes. Could be genuine, could be manipulative, who knows? He also conveniently avoids answering Sebastian's question with a:] I can always complete my homework when I return home.
[Besides, it's not like whichever tutor left it there for him will know.]