Willa's race is believed to be extinct. The Sprites of Sparkle, a sentient planet, require the orgasms of their partners as nourishment. What better way to meet her needs than to anger her Corporation Master into selling her to the captain of the Quiet Kitty Waveship as the ship's Sexengineer? Brant fears he alone survived the Corporation's war against the Sh'Bahkyr. Plying the spaceways as a smuggler/spy, he gathers an army of subversives to combat the evil Corporation while searching for his sister and their people. Not even his distraction with the new crewmember, an exotic submissive whose sexual appetite rivals his own, can deter him from his goals. Two people burdened with hidden agendas come together despite their suspicions, only to find the heat they generate might burn them to cinders.