NEW YORK — On a Sunday morning in late May, Taylor left her Harlem apartment and boarded a train for Greenwich, Conn. She planned on spending the day with a man she had met online, but not in person.

Taylor, a 22-year-old student at Hunter College, had confided in her roommate about the trip and they agreed to swap text messages during the day to make sure she was safe.

Once in Greenwich, a man who appeared significantly older than his advertised age of 42 greeted Taylor at the train station and then drove her to the largest house she had ever seen. He changed into his swimming trunks, she put on a skimpy bathing suit, and then, by the side of his pool, she rubbed sunscreen into the folds of his sagging back — bracing herself to endure an afternoon of sex with someone she suspected was actually about 30 years her senior.

Taylor doubted that her client could relate to someone who had grown up black and poor in the South Bronx. While he summered on Martha’s Vineyard, she’d likely pass another July and August working retail in Times Square.

A love match it wasn’t. But then again, this was no ordinary […]