The blindfold and headphones suggest that if she saw or heard him then she would know who he is. He looks a lot older than her, so maybe it's a neighbour, someone she works with, family friend, maybe even her uncle or father, who knows but someone her husband doesn't want her to know.
My dominant wife want also this scenario but She wants me to degrade me and humiliate me. Im really not into eating cum or sucking others cock but She wants me dress in sissy black pantyhose to watch them with my smaller cock in front of them. I asked her why She wants it? She said She loves me to admire her as sexy and special, powerful wife so