Years ago I knew a guy who was then going with the woman who later became MrsBubba - I then knew of her only as a cute blonde girl with big tits who was sort of new to the shifting group of acquaintances. I was "involved" with another or others at the time - not sure any more exactly who ...
One cold Chicago afternoon I saw him on the street and he told me he was off to get some "tender loving care". The events which I then took it were about to ensue - presumably involving his cock and my eventual wife's mouth and sweet pussy - I later reclaimed from storage and assigned my own personal erotic significance to. These putative happenings remain part of the furniture of my imagination, which I can have recourse to whenever I wish.
Any actual event which took place that day (if it ever did - which I insist it must have) is not one which my wife remembers specifically - she was fucking him and occasionally others during that time and she doesn't really remember that day, although she does remember his cock, which was, she says, "very nice".
I think this shows that the hold which our hotwives' "pre-us" sex history has on our imaginations is so powerful, that even only sort-of wife-sex stuff that we knew and didn't care anything about when it was actually going on, can get hauled up later and generate erotic thrills for our weird libidos.
I mean, this is DOUBLE "ex post fuckto" - having taken place, if at all, in her past and in my then entirely separate past at a time when we shared no joint past or present, but only a then wholly-unguessed-at future.
Yeah, I 've got the kink, all right.