Two or three times a year, you and your wife and her sister and her sister's husband go away on vacations together. Your wife and her sister always have a LOT of sex on these vacations -- always involving cuckolding the two of you. It was really awkward for you and him the first few times, but you're basically used to it now, and you even sometimes talk about it with him -- about how you both took a while to learn to deal with it emotionally and how you now have gotten to the point where you really hope that the two of them are having a good time.
Your wife invited her new co-worker out for drinks after his first week in the office. Of course he said yes. And when he invited her to his apartment, she, of course, said yes too
Your honeymoon was not working out quite the way you had expected. But at least you will be knowing that your new wife is having a wonderful time and having lots of incredible sex.