The holder of the phone chuckles, generating a new sentence about you, thumbing through with one hand while the other spanks Tammy. As you lean over, dangling your enormous breasts over him in a threatening(?) fashion you can even see it.
"This short busty woman looks at her wife with concern."
"Oh, I didn't realize you came as a set!" he says with a grin, and changes the word "at" to "like."
You are suddenly very dizzy for a moment and stare down at yourself in confusion before feeling your face. You look just like Tammy! Right down to not having anything on but a collar and a jester's cap. The only thing that hadn't changed was your height and your chest. A quick glance at Tammy showed those proportions were passed onto her though. Anyone would think you were twins.
You are absolutely shocked by this change, and all the others this creep has made to you. Wait, why can you suddenly remember all that? You glance again at this creep's phone, seeing the revised sentence just before he changes it- "This short busty woman looks like her wife with concern." Of course! Why would you be concerned about how you look if he hadn't slipped up and made you aware of everything? He probably didn't even notice, so all you had to do now was pretend to be a bimbo and snatch away his phone. Then it hits you that he is making another edit.
"These absurdly top-heavy asian women look just like each other."
As you bend down to make your move, he changed "look" to "act" and you collapse in the same position as Tammy. He looks down at her and says "stroke it a bit." Tammy raises herself to a seated position as you get up, and wraps her fingers around this creep's cock, intertwined with yours, as to your horror you are compelled to mirror every single action she takes. You both say "ooohhh... it's so big..." in perfect unison as you begin to stroke it.
Your heart races. Does this mean you no longer have any free will? You can only mirror Tammy's actions? With a strange mix of fear and arousal, you try a subtle experiment, turning your head to look Tammy in the eye and give her a knowing wink. She winks right back in perfect unison of course, but this was your idea. You have to do what she does, but she has to do what you do. So if you work together...