Concupiscence

Addison never drank before.
Never smoked before.
Never had sex before.

She picked books over boys, water over alcohol, and staying home, watching Netflix and eating take-out food over partying with the rest of her somehow graduating class.

So when she gets a C- on her paper that she had worked a little over a month on, you're damn right she stayed after to politely discuss her grade, only to realize her professor wasn't someone to be messed with.