Sherry Bennett was one of Gaius Baltar's previous sexual conquests, presumably hailing from Aerilon. When asked about the first woman, excluding his mother, he ever lied to by his Internal Six, Baltar tells her that it was Bennett.
When both Bennett and Baltar were in fourth grade of elementary school, they played a game of "If you show me yours, I'll show you mine" behind the background in the band room of their school. She showed hers, whereas he did not.
- Given Baltar's admission in "Dirty Hands" that his home colony was Aerilon, residing there until he was eighteen, it is more than likely that Bennett was from Aerilon.