A wet lesbian debutant story

Co-workers at a respected bank, Brianna and Mary are used to treating everything with discretion. But when they discover that one of their customers is an erotic author, the two women can't help themselves and take a curious peek into her books - only to then take some time off in the bathroom. Will their discretion extend to their own desires, and will they be able to keep their hands off each other? Or is it time to deepen their relationship, as deep as it can get?