Older woman enjoys them to the max and shows boyfriends how much fun she can have if they only play along with her needs. Then she makes a profession out of it but not as a prostitute.
A story in the Religious Revelations Universe
An old journal written by a missionary in the Mid-Pacific reveals a very different and interesting island culture. He found a matriarchal (compassionate), polyandric, and pantheistic culture that had some better answers than he got from the Bible. That led to becoming an amateur sociologist. This writing is adapted from his 19th century journal.