((Okay. This one's another bratty bossy JOI, with you getting to improv the final countdown and decide if it's cum or denied! Improv and deviate from the scrip wherever you feel and make it your own! Have fun!))

Hello there little stroker slave, back to see me again? Looks you're back here again! Just so I can boss you around! Insult you! Tease, deny you! Waiting in obedient anticipation of when or IF, I allow you to cum!
Now, you can take your little cocklet... As soon as I tell you to, of course. So! Put in your hand, and stroke!
But! Before that, I wanna hear you BEG! Beg me, princess sunshine, to allow you to stroke yourself! ... Hm?> What? I can't hear you, you'll have to speak up! Remember! You're my slave boy and I wanna hear you beg!
Awwh, I still can't hear you!  .. Ahaha, much better, slave! Hehe
So pathetic! You spend all this time obeying me, worshipping me, doing what I tell you to do, whether you can or cannot cum, it's- It's pretty pathetic, haha!
You're such a bitch, but to me you're just my entertainment! Ehehe
You're just my amusement! Here for me to laugh at, boss around, and humiliate you! To make you give up control of your orgasms!
Now! You can take your little cocklet, and begin to stroke it! NOW you can! 
...hmmm, nope! Changed my mind! I want you to stop! Right now! Until I tell you that you can start again, I mean- I Wouldn't want you to get blue balls again! haha! But! If it happens, so be it! Ehe
You see, this is really funny for me, this is pure entertainment! It.... May be torture for you, but! It's entertainment to me- and we both know that's what's more important.
Okay, go back to stroking for me! Till I tell you you can cum! -IF- I let you, even. Let's do this my little slave! I'm sure you can suffer for me some more, right? After all that's what you love! To suffer for me, be denied, and be ALLOWED the privilege of thanking me for it! AHahaha!
This is so funny, like, aha, such a little stroker addict! Hm! I wanna hear you beg me again, slave!
Beg me! Beg princess sunshine to let you cum! As soon as you get all... worked up and hot, and you're almost at that point of no return, so desperate, I want you beg me! Literally get on your fucking knees! While you're stroking that cock! And beg me! Aaaaand until then, I. Just. Won't. Let. You! At all! Whatsoever! You'll have to come back to another one of my jerk off instruction audios, just praying to God that I'll allow you permission to cum this time! Because you'll be fucking lucky if I ever let you! Ahaha, you're just... a loser in my book!
But, whatever gets your pathetic little cock off I guess, ugh. Mmhhmm! Keep stroking that cock until we get riiiight to the end! That's it! Get all worked up for your bratty little princess sunshine! That's right- That's a good slave! Awh, poor wittle slave! Can't even cum without my permission! Ha ha ha! How does it feel to know I have *Complete* control over your own ability to orgasm? Bet it feels fucking amazing because it's me of course!
C'mon little slave, keep stroking it! That little TEENY tiny cock of yours! Aha, this is kind of hilarious! Still going at it aren't you? Good! Getting all excited, all worked up? Well, I think now... you can begin get ready, because it's time to count you down and tell you how close you are, and when you're gonna cum!
That's it- I'll start off with 10! And I'll count down from there! Stroke it to my gorgeous voice while I do. Aren't I just perfect? 
10!... 9....8....7.... hmmm?  6... Okay stop! Hahahahah! Now you have to restart... ALL OVER AGAIN! Ahahah! Straight back from 10, get it all worked right back up! heehehe! Oh, I'm such a hellion! Haha!
10...9...that's it, hard and fast...8...7...6...5 oh oh oh! Almost there!...4...3... NOPE! Denied! Guess you'll have to go over the countdown again! As many times as I feel like it! And there's nothing you can do but obey me and suffer for me!
Okay! One more countdown... Will you get to cum? Or am I gonna be brutal and deny you like last time?
Only one way to find out!
I'll start from 20 to make things even harder for you, haha!
(You then improv a countdown from 20 to 0, adding taunts, insults, laughing, anything you like go for it! Be as bratty as you like And it's up to you if I get to cum this time or get denied like last time! Do I get denied again or do I get to actually finish? I'll have to wait and see)