You shouldn't sleep with someone for money.
Rachel is a struggling college student trying to pay for her tuition out of pocket, and a man approaches her offering to pay for sex.
Rachel needs to come up with money.
Rachel decides that she'd rather not take up the man's offer, and instead does gig work on Mechanical Turk.
Rachel decides that prostitution is the most efficient way to make ends meet.
Rachel makes tons of money writing short stories for awesome requesters.
Rachel is arrested by the man, who is an undercover cop.