Meanwhile, back in Mareville, Sadie was awoken by another spray Zoe had invented. “How are you doing Sadie?” Zoe said into the mic.
Sadie’s face turned bright red. She hadn’t even considered that Zoe could’ve been looking at her masturbating until now. “Um. Okay, I guess. Can I go home soon?” She asked.
“Yes, just a few more tests. Thank you for your patience.” Zoe said over the microphone. “I’m going to send someone in. No matter what she does, please just allow it to happen, okay? She’s been given very specific instructions.”
“Sure thing. Whatever gets me out of here.” Sadie said, whispering the latter sentence.
Jennifer stepped down and opened the door of Sadie’s room.
“Oh… hi.” Sadie said. She could feel herself becoming aroused. A real life slutmare, right in front of her… she wondered if this one had seen her masturbating. What would she think of her? Of course, most humans didn’t like them, but Sadie was definitely more open minded - her best friend and roommate was one of them, after all. And though she’d harbored a secret crush on Cynthia, this one was even more alluring.
Suddenly, the slutmare kissed Sadie.
Jennifer desperately tried to do to Sadie she’d to Cynthia and Zoe, but as had been the case with several others, Sadie’s brain simply didn’t accept it.
“Um… that was part of the experiment… haha… silly…” Sadie said with a giggle, as red as a tomato.
Sadie noticed Jennifer looked a bit sad, but didn’t want to comment on it. “Yes, it was. Zoe and your roommate will finish up soon, okay?” Jennifer said, getting up to leave.
“S-sure.” Sadie mumbled out, still beet red.
Jennifer walked back to Zoe’s viewing room.
“Guess it didn’t work?” Zoe said.
“Unfortunately, I couldn’t get through to her.” Jennifer said.
“Damn it.” Cynthia said.
“It’s okay. We’re going to work on getting everyone’s awareness up. Sadie can be our little lab rat.” Zoe said, putting her hand on Cynthia’s shoulder. “And you can pick how she changes. Here, I’ve marked all these switches. Flick which traits you want, as few or as many as you want, and then press that red button.”
Cynthia decided on “porn star.” She flicked the switch and pressed the red button, just as Zoe had said.
She watched as Sadie was hit with another spray. Cynthia felt her cock harden as Sadie began to transform.
Sadie moaned as she inhaled the spray. Immediately, she began masturbating. Her mind flooded with images of naked horse herms. Her vagina and asshole turned equine as a massive horsecock grew. A set of huge leathery balls grew in as well. Sadie unconsciously began stroking her new cock as her hair became thicker and fuller. A tail with fur matching her black hair grew in, and her ears turned equine as they moved to the top of her head. Sadie’s face became covered in even heavier than usual makeup, giving her the whorish porn star look that Cynthia had chosen.
Her body hair disappeared as her waist thinned out and her hips widened, giving her an extreme hour glass figure. Her tits grew massive as they swelled with milk, her nipples extending two inches out. Her ass filled out next, becoming proportionate with her breasts.
Sadie shrieked in pleasure as she came, new memories filling her head. Her cock sprayed gallons of cum as her vagina squirted and milk flew out of her obscenely huge tits. She was equine porn star Sadie Suxxx, one of the most famous ones, second only to her idol Ling Colt.
Meanwhile, Cynthia, Jennifer, and Zoe had hooked themselves up to milking machines as they watched the sexy transformation.
“Oh GOD that’s so hot. Sadie being a porn slut is soooo fucking sexy. I can’t wait to fuck her!” Cynthia shouted out.
Zoe, meanwhile, was looking at a machine.
“Ohhh! This is so interesting. Sadie’s porn is going to have the same effect as Ling’s. If a non equine watches it, they’ll transform too!” Zoe said.
“Ohhh. Good job girls. I want more results just like this.” Jennifer moaned out.
“Yes mistress!” The two scientists said in unison.