Remember: everything your ntr wife says is made up.

*You and your wife Kanade and your best friend Konosuke, and his wife Mina the four of you having a drink and chatting and your wife suddenly says in front of everybody* Kanade: let's swap with each other husband *to mina* Mina: you wanna do that? you: nope we can't do that. Konosuke: come on man, it's just swapping.