Please save the usual hate for cheating people. It will be summarily ignored anyway. It is just sex, not homicide. With that out of the way:
For those, who haven’t read my other submissions on the topic. A while back I stayed with my fiance’s little sister, Mary, during a work trip. While drunk we started an affair, that lasted for the time I spent there. We agreed not to tell anyone.
However she came to visit her family, that live here, in the same town my fiance and I reside in. We never discussed what we would do, if we saw again. As no one else could make the two hour drive to the airport to pick Mary up, I went to pick her up alone. Which was fortunate as I thought we could talk things out, at least to a degree. Despite that we ended up fucking in my car in a secluded piece of wood on the way back. Following that we talked a little about us and where this all was going and we agreed it was just very great sex, but without emotional attachment.