i'm a new domme, i'm still learning here and there. my subs likes heavy degradation/humiliation, and he likes it when i become sadistic to him. and he often said to me that he likes being forced. at the beginning, i often degraded him with "you are nothing but a replaceable toy to me" or "i could find new better slave who serve better than you" but then his response was "please don't say something like that" ...out of fear i'll leave him or he felt he's attached to me already idk bcs i didnt ask further, but i stopped saying "replaceable" or "find someone new" to make him comfortable and not feeling like he's not being listened to
i know the dynamic's consent is always the priority, but if a sub likes to be forced, is it a correct move to stop if he doesn't like one thing or should i just keep doing it (even if i dont mean it) to instill fear and how insecure he is if he disappoint me in his serving?
this is applied to other play also, how do you know where you need to stop to distinguish between "im just forcing him" and "dynamic turns abusive" even if i get his consent to force him? i'd like to hear some perspective thank you!