Well said CoupleInMD79; while I agree on most of what you said, here's a bit of disagreement....or rather my tiny opinion:kissface:
A bit of romance, not necessarily romantic feelings is (at least) this unicorns' wish. While flat out I-want-f*^#ed-but-good is fantastic.....like a totally innocently planned date suddenly finding yourselves so hot you go behind the nearest outbuilding to screw like randy teenagers *grin*.....so is someone who wants to make the date special (hotel with in room jacuzzi as well as dinner at an awesome new pub). As opposed to finding yourself at a meet & greet with the sole intention of getting the cheapest room you can find so that you have a semi soft surface to do the deed.
That said, I started out as part of a new V (fmf with no bi play among the females) & now am operating as a single woman.
The "why" for me involves safety. Most of the dating world isn't concerned enough to go for routine peace of mind testing. I am extremely sensitive to latex or pretty much any effective condom, so absolute safe play is a must for me! Not to mention, no one in the swing world cares "how many men HAVE you slept with"*insert horrified look from judgers*. I/we can say a resounding HELL NO to anything we're uncomfortable with, with absolutely no impunity.
I'm sure I could come up with more reasons "why" in due time, but I will finalize this with "well why NOT"?!?!!