At the time of this story, we had three kids aged 5 to 12 and were staying on a campsite in Dorset, not too far from Studland Bay. Before going on holiday, S had been in contact with a man in the course of business, and had developed a flirtatious rapport on the phone, we had discussed this and the possibility of some sex fun for her when we were down that way. So the scene is set, weather great, out on the beach most day...

Some years ago, my wife was supervising a group of trainees on board a former minesweeper, now a training ship. I was also aboard as training officer. She was the only female staff member on board for this trip. Part of this duty required her to sleep in the supervisors bunk within the trainees mess, though she didn't have to be there all the time. On the first of these trips, lasting a week each, we became friendly with...