"Her First Ball" is a 1921 short story by Katherine Mansfield. It was first published in The Sphere on 28 November 1921, and later reprinted in The Garden Party and Other Stories.
A young girl called Leila has come to the city to stay with her cousins. They are going to a ball. Leila is very excited: this is her first ball. Once there, she is both excited and terrified. After dancing with several young boys her own age, she dances with a wrinkly balding man who has been coming to balls for a while. This spoils her mood until she dances with a good looking young gentleman where her worries disappear.