Rixx (location)

From Memory Alpha, the free Star Trek reference

Rixx is a location of Betazed that is home of the Sacred Chalice of Rixx, an heirloom held by Ambassador Lwaxana Troi. (TNG: "Haven")

Rixx is a location that serves as the home of the Pleasure Goddess of Rixx in the holosuite holoseries that includes: "A Picnic with the Pleasure Goddess of Rixx", "A Visit with the Pleasure Goddess of Rixx". (DS9: "The Homecoming", "Little Green Men")

It is possible that the latter location is also on Betazed, considering the preversion of the Ferengi fantasies, and the Betazoid's reputation of being "sensual".