Mary and Margret Green
Mary often called Molly is the younger of the sisters. Grew up in the Ceres Belt on the Green Family Station/Farm.
Chui(Lieutenant) Margret "Mags" Green of Tokushu Butai Specter (Strike Team Specter) part of the Inner-System Fleet of the Seventh Legion: Phoenix Squadron.
She also called the Station home.
Both are currently in a Corridor of Fuyoushi aka Absolute Zero an infamous Space Station in the Ceres Belt between Mars and Jupiter.
(How Infamous? There are 3 competing Brothels! One of which I've named Orbit 69, also the Drunken Aberrant Bar and Grill is owned by the same person.)
Anything else you have to wait on