Щ(・`ω´・Щ)
Shuu:
-He’s displeased that he has to get up and move, but doesn’t bother arguing with you. He’s a little bitter about being made to kneel, but, and he’d never admit this, it doesn’t feel too bad to be at your feet.
Reiji:
-He’s somewhere between furious and humiliated that you want him to do something like that, but if he has no choice, will comply. He’ll probably try to find some way to take control of the situation even then.
Ayato:
-He argues and pouts about it for a good few minutes, but will eventually comply. He’s bratty even once he’s kneeling, trying to find some way to insult you for making him do something so embarrassing.
Kanato:
-How dare you treat him like this! Expect a shouting fit and some tears, before he finally gives up and complies. Once he’s on his knees, though, you might notice that he seems to be a little bit flustered…
Laito:
-It barely even has to be said that he’s going to make something sexual out of it. Teasing you about exactly why you’d want him to do something like that is how he keeps control of the situation, if even a little bit
Subaru:
-From the very suggestion, he goes painfully red. It’s downright humiliating to be on his knees in front of you, and even if… that’s… not entirely a bad feeling, there’s no way he’d ever want you to know that.
Azusa:
-While a bit confused as to why you’d want him to, he’ll happily do almost anything you ask of him. However, there’s a good chance he’ll interpret the kneeling as a sign that you’re about to do something to hurt him.