Back in the 20th Century it was common for assholes to say shit like “a woman is never more powerful than when she’s on her knees.” An anti-feminist dick move because those guys literally couldn’t imagine any other way women could have power!
Meanwhile, here in the 21st Century it’s common to associate kneeling with consensual sexual submission. Because we can not only imagine but experience all the other legal, intellectual, economic, political, and artistic ways women have power.
But really, sometimes kneeling is just a really good way to line up mouths and genitals, isn’t it?
When I go down on you it’s usually for perfectly vanilla reasons (I enjoy it a lot and want to make you feel good), occasionally for Dominant reasons (I enjoy it a lot and want you to lose control), and only very rarely for Submissive reasons (Hmm… I… well, actually, I don’t think I’ve ever done it for Submissive reasons.)
And usually if you had only watched someone go down on me you’d probably have a hard time deciding whether she was being vanilla, Submissive, or Dominant either. Even if she was on her knees at the time.
TL;DR: to paraphrase Freud, sometimes a blowjob is just a blowjob. What do you thing, thistledown?