Total Obedience
"There you go, look at this, now it's getting bigger. I want you to pay closer attention to your cockhead slave. Spit on it and rub it all over with your tips. Make it all nice and sloppy for me"
(You follow her instructions)
"Be a good boy and show me how hard you can make that little thing for your mistress slave!. Do you want to stroke it now?, should i let you?. I mean, based on this letter I have to assume that you'd explode within seconds, wouldn't you?"
(You shake your head)
"Oh really now, you sure about that?. A 100% confident?. Well then, if you say so, show me slave!, i'm courious how our little "masteredger" over there performs when his hand is on his dick. Start out slowly, nice slow cock strokes, be a good slave for me"
(You start jerking)
"Well, you're owned by me while you're here and it'll take alot of commitment and courage on your part if you want to successfully complete the training here with me slave. So if you want to serve the best then you'll need to know how to take orders and follow through with every detail slave"
"..."
"Alright, keep going like that, tight grip, stroke for me slave!"