A University in the Netherlands ran a study claiming that most straight men would not know if the blow job their getting is from a man or woman. 10 men were chosen for this study of various ages. They were blindfolded and had their feet and hands restrained. Then at various times both men and women would come in and start performing oral sex on them until they ejaculated without using their hands, just the mouth. 99% of the men were unable to tell if the mouth was that of a man or woman blowing them. I was thinking what a waste of money to spend money on a study like this.