I read this story years ago. In it, a girl is employed by a call-girl agency,which screens clients. Girl may have beenin college. one day a surprise client turns out to be her father. I believe a friend of the father was a regular customer of the agency and talked the father into trying the agency. Do not recall why the screening process did not reveal the father-daughter relationship before the date. Father-daughter did sleep together but I don't recall whether they lived happily ever after or whether there might have been dire consequences. Any help appreciated.