As everyone knows, Rhiannon likes women. Pretty women. But she's a hardcore unicorn supremacist (is/was? a Plague member). I think it would be spectacularly devastating if she could find an open-minded Pegasus/Hybrid mare to develop mixed feelings for, but also hate them because of their wings.
It's an interesting plot and one that I never really thought Rhiannon capable of, and if I have people interested, that's cool. :3 If not, that's also okay.
OR
If you'd rather just thread with Rhiannon and get some plots down, that's also okay. Just let me know below!