How common are sugar couples?

I'm really interested in being a unicorn for a wealthy couple. I am bisexual and have always dreamed of playing with more than one person at a time. I love being spoiled and being the center of attention, but I can also give as good as I get.

I live in an extremely wealthy part of the country, the kind of place with wealth so prevalent that older couples with money often spend their days in complete and utter leisure while their money makes the money for them.

I desire to be a little pet for a couple or two.

Are sugar couples super rare?