Wow, ouch what a way to learn, eh?
She seems nice, a total newbie but she has taken a liking to him, am I right? She would like him to give her more experience? :) He pays her for the lessons afterall which is a win/win for her pocket and street 'hooker' cred.
I like how she is written, reminds me of a baby deer; faun approaching him and being all nervous and she also reminds me of a curious kitten now that I think about it lol I'm kinds interested in her background story, because the odds of finding a 'virgin hooker' would be like trying to find a four leaf clover. I like their dynamic. Gotta teach the newbie ;) and she hasn't learned everything... Campion should give her the works.
You flesh out the new characters well in their introductions, I hope you keep her around some and that she isn't a random throw-away. She's got potential.