Friends with a Tom boy Nadia

A young lady by the name Chistina at the age of 25 year old that hangs out with a girl at the same age as her name Nadia how is Tom boy that is know for wearing hoodies, sweats, T shirts, sneacker, jeans pants and fitted you know the same clothing boys would wear. When Christina hung out with Nadia, Nadia would always in some way see her friend Christina naked, as Christina would wear no clothing around her whatsoever.

They would even be in Christina room hang out as Nadia has her boy clothing on and Christina has no clothes on at all. Christina would even come out of the shower with towel on, and when coming out of the shower, she would come in the bedroom were her friend Nadia is and take off her towel in front of her as Nadia looks on at Christina's nakedness.

Where does the story begin?