How does Peggy reply?

Yes, of course

For a moment, Peggy was tempted to say no. Then she thought a minute. She had been looking for a way to blend in on campus. Why not do it as a life model? It would give her the perfect excuse to go back and forth on campus and she might even get paid for it.

Besides, Peggy thought it a bit flattering that the art teacher -- which was what the man obviously was -- had considered herself attractive enough to be a life model.

Maybe this mission won't be so bad, after all, she thought.

"Why, yes, I'm a life model," she said. "I'm sorry I'm late but you know how the traffic can be in this city."

"No apologies necessary," said the art teacher. "Just go behind that curtain and change into your robe."

"That's all you want me to wear when I pose for your class today? Just a robe?"

"No, you silly woman," said the art teacher. "Didn't the people who sent you tell you anything? I expect you to pose nude."