Listen, I know you're failing your Charms class. And as Captain and Seeker of the Hufflepuff Quidditch Team, we can't have that can we? Luckily, I have an idea for a deal- you get me, Hermione Granger, to help you write your Charms essay, and in return all YOU have to do is be my own personal foot boy, and worship each of my perfect toes, licking and sniffing my heels, until I send you back to the common room with the taste of my feet in your mouth to polish off your wand. A pretty good deal, don't you think?