The coach of the swimming team noticed that she had the best lung capacity of the entire team and could hold her breath under water longer than anyone on record. He signed her up for a special training program. She spent every Saturday with her throat wrapped around her trainer’s cock, holding her breath until he came against the back of her throat. He’d pull out and let her breath while he got hard again. She thanked her coach for the opportunity to learn how to become a real deep throating slut by demonstrating with his cock every Monday, in front of the entire swim team. Since her ability to hold her breath under water was improving as well, he was starting to consider making deep throating a part of training for the entire team. She told her coach that she thought it was a great idea.