If she works at the penthouse, in addition to Ricky and Christine she would 100% know Luca. He is a Penthouse regular. Doesn't often take one of the girls time, he's more of a come and watch the show, then go to the Back Room to deal with business so he can walk out with some dignity. But he does indulge from time to time. He knows all the girls by their first name and last Valentine's day he sent every woman in the building roses.
Nick stops by on occasion too, and he says don't knock it till you try it, with a wink.
She might have sat for Mason a time or two for art photos. Nothing really racy, that's not the kind of photography he's into. And he posts his "need subject" ads in coffee shops and at the university.