That is, relatives or childhood friends who discover that they are both in the hobby.  Not too many of those will be consumated.  It might just happen with  adopted children though.  In the, sooner or later that *is* going to happen.  

I can't say that these two really went on a "date."  The date sounds like it was aborted.

He did not know that it was his father that he killed or his mother that he married.    This is hardly a modern thought

A friend of mine who is also a hobbyist, contacted a provider, got verified through RS2K, made an appointment and was given her incall address. The address was same as his... yup, she is one of his neighbors in the same apartment! She doesn't show her face on her website so he had no idea. He made an excuse to cancel his appointment. Scary!!

a young man whom it turned out I knew from my civi job. Luckily I found this out when doing the pre screening. Needless to say I canceled the appointment as I had found I would be unavailable during that time period and recomended a couple of other ladies whom might be able to meet with him.