It didn't begin until he was nearly fifty. The young women were everywhere — photographers' reps, secretaries, stylists, models, account executives. Lots of women, and you worked and traveled and had lunch together, and what was astonishing wasn't what happened — the acquisition by a husband of "someone else" — but that it took so long to happen, even after the passion had dwindled and disappeared from his marriage. It began with a pretty, dark-haired young woman of nineteen whom he hired to work as his secretary and who, within two weeks of taking the job, was kneeling on his office floor with her ass raised and him fucking her fully clothed, with just his fly unzipped. He had not possessed her by coercion, though he had indeed taken her by surprise — but then he, who was conscious of having no peculiarities to flaunt and who believed himself content to live by the customary norms, to behave more or less the same as others, had taken himself no less by surprise. It was an easy entry because she was so moist and, in those daredevil circumstances, it took no time for each of them to achieve a vigorous orgasm. One morning just after she had gotten up from the floor and returned to her desk in the outer office, and while he was still standing, face flushed, in the middle of the room and adjusting his clothing, his boss, Clarence, the group management supervisor and an executive vice president, opened the door and came in. "Where is her apartment?" Clarence asked him. "I don't know," he replied. "Use her apartment," Clarence said severely and left. But they couldn't stop what they were doing where and how they were doing it, even though theirs was one of those office trapeze acts in which everyone has everything to lose. They were too close to each other all day to stop. All either of them could think about was her kneeling on his office floor and him hurling her skirt up over her back and grabbing her by the hair and, after pushing aside her underpants, penetrating her as forcefully as he could and with an utter disregard for discovery.

Then came the shoot in Grenada. He was running the show, and he and the photographer he hired picked the models, ten of them for a towel ad that would be set beside a small natural pool in the tropical forest, with each model clad in a short summer robe, her head turbaned in the client's towel as though she'd just washed her hair. The arrangements had been made, the ad okayed, and he was on the plane sitting alone away from everyone else so he could read a book and fall asleep and fly there unperturbed.

They had a stop in the Caribbean, and he got off the plane and went into the waiting room and looked around, saw all the models, and said hello to them before everyone got onto another, smaller plane and took a short hop to their destination, where they were picked up by several cars and by a small jeeplike vehicle, which he decided to ride in with one of the models whom he'd taken note of when she was hired. She was the only foreign model on the shoot, a Dane named Merete and probably, at twenty-four, the oldest of the ten; the rest were American girls, eighteen and nineteen years old. There was somebody driving, Merete was in the middle, and he was on the outside. It was nighttime and very dark. They were squeezed in tightly together and he had his arm around the top of her seat. Only moments after the car took off his thumb was in her mouth, and without his knowing it, his marriage had come under assault. The young man who started out hoping never to live two lives was about to cleave himself open with a hatchet.

When they got to the hotel and he went to his room, he lay there most of the night thinking only of Merete. The next day when they met, she said to him, "I waited for you." The whole thing was so quick and so intense. They shot all day in the middle of the forest with the small natural pool, worked hard and seriously for the entire day, and when they got back he found that the photographer's rep who was along on the job had rented a house on the beach just for him — he had thrown a lot of work her way, and so the rep rented it for him and he moved out of the hotel and Merete came with him and they lived there on the beach together for three days. In the early morning when he was coming back up the beach from his swim, she would be waiting on the veranda wearing just her bikini underpants. They would start then and there, while he was still wet from his long swim. For the first two days he was always diddling around her ass with his fingers while she went down on him, until finally she looked up and said, "If you like that little hole, why don't you use it?"

Of course he saw her back in New York. Every day that she was free he would go to her place at lunchtime. Then one Saturday he, Phoebe, and Nancy were walking down Third Avenue when he saw Merete walking on the other side of the street with that easy, upright, somnambulant gait whose feral assuredness always slayed him, as if she were not approaching the Seventy-second Street light carrying a bag of groceries but serenely traversing the Serengeti, Merete Jespersen of Copenhagen grazing the grasses of the savanna amid a thousand African antelope. Models didn't all have to be needle-thin in those days, and even before he spotted her by her glide and saw the sheaf of golden hair down her back, he identified her as his very own treasure, the white hunter's prize, by the weight of her breasts inside her blouse and the light heft of the behind whose little hole had come to afford them such delight. He displayed neither fear nor excitement upon seeing her, though he felt extremely ill and had to get to a phone alone to call her — getting to the phone wa............