My wife and I moved house after she was 8 months pregnant and had to go to a new hospital for an ante natal.
She was dressed in a gown and I was allowed to be with her. She saw a midwife and I was surprised to see a young man in the room too. He was introduced as a trainee doctor.
She was asked to sit on the bed and was asked various questions about the pregnancy by the female midwife. She was then asked about her breasts and whether they hurt and if they were producing any discharge - (they were). The student doctor was sitting to one side watching, and I was sitting to the other. My wife was asked to drop her gown to allow the midwife to check her breasts.
I became very excited (not in a pleasant way initially) as I realised that the student would get a sidelong look at my wife's swollen breasts and nipples. She dropped the gown as requested. The midwife supported each breast in turn with one hand and squeezed each nipple with the other until the discharge came - the student was getting a pretty good look from his seat.
The midwife said to him, 'Can you come and try this? Have you done it before?' The student answered no and lloked a bit panic stricken. He glanced over at me and I guessed he was worried about my reaction - which admittedly was startled.
She said 'Mr and Mrs S... don't mind, come on and try'. The student stood up and copied what the midwife had done and used both hands on each breast in turn until he got a discharge to come out.
I know my wife did not like any manipulation of her nipples at that stage because they were so sensitive, but she did not complain at the time.
I became very excited at the time, seeing the 19-20 year old lifting and pinching her nipples.
This feeling grew well after the event, and although my wife said she did not like it, it became the centre of our love making on many occasions afterwards.