He doesn't notice, and is pretty skeptical, but tests the app anyway.

As you carry on, your attention completely held hostage by the sloppy blowjob your master has allowed you to give him as your treat, you're pretty much oblivious to whatever Chad is doing above you. He begins chuckling incredulously and muttering to himself, though you take no notice, as it's clear he's not talking to you. For the time being, you are beneath his notice, which is for the most part where you know you belong. There's still a glimmer of awareness at the back of your mind that there was once something else to your life, but for now, it's being drowned out by the need to please, and by the taste of Master's dick as it slides back and forth across your tongue, and down the back of your throat.

"Pfft, come on. 'Rules of the World'? That's some cheap low-concept sci-fi dog-shit if I've ever heard it. Hm, still... No idea where this phone came from, and it's still unlocked... And you wouldn't slip through your dog flap and take yourself for a walk without my permission, would you, Bitch?"

"Mmmnrrulph?"

"Nuthin'. Oh, dial it back a bit, bitch. If I come now, you're not getting your pussy ploughed until dinnertime."

With a pitiable whine, you heed Master's warning, and return to simply licking his shaft in every direction and from every angle you can imagine.

"Anyway... Heh. Well, I was gonna save the dog-ear hair band and tail butt-plug I bought until this evening, but if this app were real... Aw dude, that would be so fuckin' sick. How would you do that in this thing anyway? Lemme see... I may as well take my time about it, though. You never know..."

• All women are born with the physical characteristics of a breed of mammal, except human-sized, and able to walk upright. Although they find it just as comfortable, and even a bit more natural, to walk on all-fours.
  ("Yeah, that sounds pretty hot. Man, I wish this were a real app...")
• It is normal for women to be thought of (and treated) as being closer to animals and pets than to humans. There are kennels, shelters, and so forth that collect stray or unwanted women and find them masters.
  ("Not that different from the ****-trading services, I guess.")
• Every man can decide, at will, whether or not their women will be impregnated by their ejaculation.
  ("That makes contraception obsolete. I never did like the feel of rubbers. The Bitch takes her pill when I tell her too, but hey, might as well.")
• Men do not have to work except by choice. Women do not have to work unless their master wants them to. All otherwise undesirable work is perfectly automated.
  ("As long as I'm 'playing God', I might as well get all those slaves out of the factories. I always thought it was a waste of hot chicks.")
• All women recognize human males - and their master above all others - as their biological superiors, and can do nothing to harm them in any way. Each time their master fucks them, they crave it (and them) more and more. This might lead to 'love', but that depends on the woman.
  ("Maybe this is a bad idea, I dunno... But I always thought it would be hot if a woman's biology didn't cause them to fall instantly in love with their master. It would be cool if you had to break a bitch in for a while. It would be risky though, so... Maybe just one more quick rule to cover all bases...")
• Women are significantly dumber than men. Women see the advantage in having a master, as someone to do most of the real thinking for them.
  ("Yeah, that'll do. Good thing I can just test this thing out on women first- who knows the damage you could do to real people if you messed it up.")

Long, crucial moments pass by unregarded as Chad incredulously taps away at the phone, until you are mere seconds away from having your whole world and your very biology overwritten for the second time - only this time, you may well never know that it had been any other way. Of course, you're almost totally oblivious to the threat. 'Almost', because there's still that annoying little splinter in the back of your mind that gives off the faintest but ever-slightly-mounting feeling that it's very, very important for you to get that phone before Chad is finished with it. Not that you'd pay any attention to a silly little impulse like that anyway - you have some very important business occupying your whole attention: worshipfully polishing Chad's cock with your tongue as though it were positively dripping with peanut butter.

What a lucky puppy you are! Who's a lucky puppy? You are!