When my wife was about to give birth to our first child the doctor we used was a teaching doctor at a medical school. When she was at the hospital about to give birth the doctor would come in to exam her with several of the students in tow.
On time she examined her while my wife was exposed they all took turns putting their fingers in her vagina. Several of the students were young men. I got a raging hardon witching these young men looking at and feeling my wife's vagina.