Facilinatrix
A facilinatrix is like the assistant in a kinky relationship. She helps the main girl out and makes sure the other guy doesn’t forget his job. She’s there to keep things running smoothly and to make sure everyone is having a good time.
'She’s the one who reminds me I’m not the only one in this.'
'She’s like the co-host who also does the setup.'
'She’s the one who makes sure I don’t forget my lines.'