Rosita Pérez was a female human in Starfleet in the 24th century. Circa 2345, she was assigned to the USS Lexington, and during that time, had a brief romantic relationship with chief of security Lieutenant Declan Keogh. Shortly afterward, she also had a brief romantic relationship with Ambassador Curzon Dax. (DS9 - The Brave and the Bold, Book One novella: The Second Artifact)