So, Carol's friend Vicki invited her over to her house for her husband's birthday to give him a threesome. From what I've been told, Vicki is now fairly upset with my wife because at the outset of the threesome, Vicki and her husband were making out, and Carol was sucking his cock. Then Carol got on top of him, and rode him for about a minute or two before Vicki's husband came in my wife. So, Vicki got angry that she didn't get to fuck her own husband, and she wanted him to cum in her, not Carol. While they smoothed things over a bit, there's still tension between them.