The Henry part was told early on wife lied about her sexual past. She was Henry's cock throat sock through college. MC figured his wife was hiding who she was the day when she deep throat the masseur with no problem. I heard there is choices again question do they still not matter.
I was aware of that, and it just makes it even worse. Henry thought he had this girl in college, but she goes off with the MC and then when she fancies, she brings Henry back in, but not as an exclusive, not as some long-lost love, but as a living dildo. Henry is sadder than the MC, he's not only a cuck, but he's always going to be second fiddle at the absolute best, and rather than go off and find someone that could be satisfied by him he loiters around like a lost puppy, not realising that the size of his cock is the only reason anyone tolerates his existence. Imagine one's value as a human being reduced to the size of your cock because you have nothing else to offer the world.
I know we're meant to think that the MC is the cuck to be humiliated and ridiculed, but that ignores the fact that every other male in this is just an NPC. The MC, if at all, is being NTR'd by his wife's out of control libido, which isn't NTR at all, any more than spending all your freetime restoring shit old muscle cars is NTR'ing one's wife.
We might think poorly of a man who lets his wife have sex with other men but that ignores the fact that the other men are just as bad as each other, all dipping into the communal porridge. All just playthings for this walking STi incubator. But at the end of the day the MC is making money from her - albeit not as much as he could considering her frequent unwillingness to perform - and even that is a middle finger to Henry, because almost every scene shot involves him, so a refusal to perform is a direct snub to Henry, especially considering that every non-film option involves the wife having sex with someone other than Henry.
Honestly, the only person that could be considered as a potential NTR is Malcolm? The guy in the emails. But he is so sad that not only does he have to pay for it, but he ends up with everybody else's sloppy seconds.
That's why this 'game' isn't really NTR. It's just the American cuck fetish, whereby a closeted homosexual uses a beard to give him access to other males without having to admit to being gay and where other males can pretend they're not gay because even though they may get a blow job or have anal sex with a man it's all under the guise of being a 'bull' and 'humiliating' him. Honestly, it's much the same mental gymnastics where prisoners have prison wives but pretend, they're straight .. because they wouldn't do it on the outside, honest.
It could have been a swinging game, but the MC only likes to lick women when they're full of sperm and wears a cock cage like some wannabe trans. So, what exactly is this game? I don't know, it's now slipping down the FD and possibly BDSM route. Aside from one commenters asinine claim that a wife that's 'hot' is a 'hotwife', I have no idea what she's meant to be. She, nor the story really conforms to any clear or unambiguous definition.