Since no one has answered this I shall ask it again, is Swinging/sharing optional?
I haven't played this game yet, but I have played the prequels, and almost every kink was optional.
Since it's the same dev, I am going to assume you won't forced into any kink or love interests you're uncomfortable with.
Really looking forward to this game, the graphics are PS2 tier but the writing, and stories will probably be GOAT'ed (judging from his other games).