Your class mate jokingly asked what you would do for a couple hundred dollars, you thought he was playing so you made a daring counter-joke about how you'd even suck a dick for that much money! You added that it was such an easy way to earn money, just putting something in your mouth and 'ta-da!' Never would you have thought that he would take it literally as he pulled down his pants, fully erected right at your face. A deal's a deal though... He really handed you a few hundred dollars and you got on your knees, hair tied up ready to hustle!