Flame by Michelle M. Pillow

Vin (aka Flame) can’t believe he’s in yet another holding cell. Stupid Earthlings wouldn’t know fun if it bit them in the hindquarters. Speaking of fun, the hot little number who claims she’s a guard at the jail has been making his body respond in ways he’s very happy about. If only she’d get on board with the plan and help him escape back to his ship. First she’d have to believe he’s an alien. Right now she’s taken to thinking he’s crazy.