When the explanation is put in this way, there is no point in arguing, you are right, but as always, there are variations in relationships and feelings, if the couple does not set rules for themselves, or if they do not respect the boundaries of the couple, not of the individual fetish, in the devoted wife, the story is totally different from this, MC has this fetish, which his wife gradually discovers, and which makes the sex sessions hot, but being too clumsy and weak in character, Mc accepts every game that the wife does it with the boy, without realizing what problems are being created, in fact, as time passes, the wife enjoys herself, much more than the husband, she gives priority to the boy, so much so that whether MC, witnesses or not, the wife is not interested, and we go from sharing to fetish, to being humiliated, many confuse, the open couple or sharing, with the cuckold fetish, and with the shameful game of humiliation on Mc. Cheating is a word, it can be used in many fields, not just in sex, it is normal that many times, it is subjective, in a couple that loves freedom of sex, it is enough that one of the couple goes with another partner, without saying or lying, well we are in the field of betrayal, and this happens for example in the game, an adventurous couple, when the wife Anna fucks MC's father, without saying anything, so an open couple or not, there are limits and rules.