" Now, Polydeuces, let her be,” Castor said, hugging me again. “Look at that face! Her brow’s all creased with worry, and for nothing. As if our little sister would ever give her heart to anyone less than a prince! As if a slave’s child could ever raise an army to take Sparta!”
I whirled out from under Castor’s arm. “Milo is no slave, and he’s worth ten princes!”
Castor sucked in his breath sharply and looked to Polydeuces. “All right, now I’m worried,” he said. "

― Esther M. Friesner , Nobody's Prize (Nobody's Princess, #2)