Imagine watching a friend as they livestream a game for you and slowly hypnotizing them with it during the course of your call.
First, you'd prepare all the necessary safeties, asking them for their consent and gently erasing the memory of it so they can be caught by surprise. Maybe even making your life easier by giving a little more weight to your words, a but more of a push to agree with you, small enough to be undetected by even the most aware of subs.
And from there, things would start out simple, as they usually do. A bit of backseating here and there, a suggestion of what they should do, followed by a bit of innocuous praise when they follow your words.
After enough time though, you would start suggesting more. You could tell them where to go, and they would follow, too caught up in the game and your words to really object.
In this state, you can make the game affect them. Enemies that swing and sway suddenly become harder to look away from. The world they are playing in becomes prettier, more tiresome, more.. mesmerizing.
Their thoughts would naturally slow, and so would their movements. They would start messing up and dying far more frequently, at which point you could make that into a trigger, too. Every loss drawing them back into that world, more enchanted by it than before, more dizzy and happy and obedient than they were just a few minutes prior.
And, once they've spent a little while in this dizzy state, you'll find their character not moving at all. Completely idle. Sitting still as your sub drools all over themselves, too tired and needy and obedient to do anything else. From gladly sharing their entertainment to becoming yours, all with a little patience and a few well timed suggestions~
