Be my pet.

"I want you to be my pet."

"Eh?!" The inventor squealed.

"Since it's normal for someone to give up their status as a person if so they desire, I wanted to see what it'd be like owning a cow for a while. For keeping your secret it's a really generous offer!"

Miu sighed, and with effort got up from her chair. "I guess it's the best deal I could possibly get, but I have never been... owned before..." She blushed, and while trying to use her arms to alleviate the weight of her tits continued: "I have heard of some people doing it but, never really bothered to know what that entails, y'know?"

"Well, it's simple," Shuichi began. "While you are a pet you are no longer considered human, you can't refuse your owner's orders, and need to make it clear your body belongs to your owner."

Miu's blush grew redder and redder.

"Are you getting turned on by the idea?"

"I- W-well- I just-"

"I don't think I'd mind if you enjoyed being my pet."

A nervous, but curious smile grew on Miu's face.

"W-who knew I'd get a perverted owner... This is fantastic!"

Shuichi found himself relieved, in a great amount, by seeing her reaction. He never changed the 'normality' of Miu's feelings for a situation like this, meaning: her response to the conditions he had put was mostly honest. Turns out he wouldn't be the only one truly enjoying the situation.

"L-Let's do this!" Miu almost shouted, with conviction but clear nervousness. "Until you feel I've paid my debt: I, the amazing genius Miu Iruma, am your pet!"

Miu's breasts began leaking through her swimsuit top, clearly a result of the arousal coursing through her body.

"S-so, how can I make it clear you own me, s-sir?"

Shuichi looked up and down at her, shortly after using one of his hands to squeeze more milk our of her teat.

"Why not a collar? I'm sure it shouldn't be an issue to make problem to make a collar with a leash for me to hold. If you make it quick I'll take you for a walk."

Miu was practically drooling with anticipation, putting all of her effort into it she quickly moved to engrave a piece of metal, and adding it to a collar Shuichi didn't question why she already had.

In a flash Shuichi found in his had the other end of the leash connected to her collar... Why not have some funny with it?

Shuichi pulled harshly on the leash, bringing Miu to her knees. The weight of her body causing a painful sting on her back.

"A-ah! G-God!" Miu moaned. "Y-you can be harsher... s-sir."

"You are more of a masochist than I thought."

Miu began to leak not only from her nips, as her pussy got more and more wet.

Pulling on the leash again he brought her to be on all fours, walking up behind her, pulling the bottom of her underwear aside revealing her pussy.

Miu was shaking with anticipation, finally sated when she felt Shuichi's cock go inside her.

"M-Mooooooo!"

The softness of Miu's body, groping and squishing her milk tanks from behind, it all felt like absolute heaven. The harder she railed her the louder her mooing became. Shuichi knew he wouldn't last long, the perfect squishy feeling of all her body, the slapping of her cheeks with every thrust.

"C-Cum in me! P-please! Mooooo! "

Pushing as deep as he could Shuichi finally gave up on holding back, pumping his hot load inside of her.

"Moo... Moo... Moo..." Repeated the exhausted cow girl.

Fixing himself, and trying to ignore the creamy and milky mess they had made in Miu's floor, post-nut clarity made Shuichi realize it was better for him not to stick around for long.

"Miu... ehm... Clean this mess, and after that you can go back to your work. We'll talk later. Ok?"

"Moo... Yes sir... Moo..."

With his lust satisfied, at least for now, Shuichi left Miu's lab, with a fresh look on things. He had changed so far only girls in his class... Why not broaden his horizons? There were plenty of girls in the academy. As a matter of fact... Why not use this as a way to compare data? Change a girl from his class, and another from a different class, and see what comes of it.

The only question is who?

Current changes:

• Kaede never wears anything below her waist, and spreads her legs whenever she sits.
• Everyone answers honestly to Shuichi, no matter how many questions he makes.
• Tenko adores submitting and receiving orders from men.
• Himiko looks like a porn actress. She had an amazing puberty growth.
• Himiko goes around mostly naked, and will let anyone cum in her.
• Shuichi's cock is Kirumi Tojo's Master.
• Miu the cow-girl, is Shuichi's pet. She has spine-breaking, lactating H cup breasts.