I have never heard a lady say 'arse,'" the emperor said mildly.
"I haven't been a lady for long," I reminded him. A little demon–made of exhaustion and the emperors smile– pushed me into adding,"For five years I've been saying 'arse.' It's hard to stop saying 'arse' after that many years. I suppose I should stop saying 'arse,' since ladies don't say-"
"'Arse'," he finished for me.
I met his grin.
~Page 104, Eona: the Last Dragoneye, Alison Goodman