Princess who "hears rumors" about what her favorite knight is doing to girls that look like her, so she sneaks out and pretends to be them.

Every whore and maiden counts themselves lucky to have such a famed, chivalrous, beautiful knight for a suitor, instead of the usual boorish lordlet

Until they get a taste of the beast locked up tight behind that handsome breastplate

I also think the idea of being a perfected killing machine also has a mix of desire and disgust about it too... "I could protect those I love" has appeal just as "I would lose my soul in pointless violence" is scary (esp with how often toxic masculinity glorified inflicting violence)

tl;dr: to be brainwashed into a hound is to be instrumentalized, and that's something trans women have a unique fear of, because society encourages all of us to instrumentalize ourselves inauthentically as men in service to patriarchy and other hegemonic social forces. that's the thesis, I think

WOW ISN'T THAT CURIOUS