Experiment with breast augmentation

"So, Dr. Sam, what was the experiment that you were going to do?" asked Emily.

Lauren held up a finger to show that she needed a moment to catch her breath. Once she got her breathing back under control, she said, "One question Lauren and I were wondering was if my desire to please Simon would be triggered by sight alone. See the young woman in the lab room? The first experiment was to see, once I'm inside her without her having any knowledge of me, would I respond to just a picture of Simon or do I need him to be physically present."

"Borrring!" said Emily. "Who cares how it works, it works! What else?"

"Well, the second experiment was to see how being in a less intelligent brain would affect me."

Emily leaned over and looked at the girl in the monitor. I took my first good look, too. She was an Asian girl around twenty, probably what I would have considered hot before I realized the depth of my feelings for Emily. Long, silky, black hair, curves, and the kind of tight skirt and short top to show off a good body.

Emily smiled. "So you're saying she's dumb?"

"Extremely," agreed Lauren. "I went through a bunch of school records to find candidates with low grades and bad reports from teachers."

"And it's just a coincidence that she's a total hottie?"

"No, I thought that Simon would appreciate that. He was a little resistant to this type of thing, so I thought he needed that extra push."

"Don't worry about that, Doc. He's really compliant now. Aren't you, Simon?"

"Yes, Emily!" I answered. "Anything you want!"

Emily patted me on the head, which felt wonderfully appropriate since I was still kneeling on the floor. She turned back to Lauren and said, "I'm definitely going to get your number and talk to you later about that trick you did with spying on students' grades. For right now, I think I can tell you how a dumb brain affects a slug. Adam here is dumb as shit, probably dumber than your girl here since she at least got into collage. His dumb ass was working at a gas station because no community college would accept him."

Adam just stood there, looking at her blankly.

"Is he okay?" asked Lauren. "He looks brain damaged. I wasn't expecting a low power brain to be such a problem for-"

"Whoa, whoa, slow down, Doc, he's just in standby mode." Emily turned to the former linebacker. "Adam baby, wake up!"

Adam blinked a couple of times, then smiled at Emily like a dopey schoolboy with a crush. "Yes, Emily?"

"I'm in the mood for a butt massage."

"Sure!" Adam moved behind her and dropped to his knees. He grabbed her ass with both hands and started kneading it. Then he stuck his face right between her cheeks and rolled it around as he massaged her.

I was insanely jealous.

Emily looked back at Lauren. "See? Standby mode is just easier when I don't want to deal with his constant love and adoration. I usually fuck him in regular mode. I had Sally make the triggers, but she puts him in a custom mode for herself whenever she's inside him."

"Fascinating!" said Lauren. "Did you notice anything that you think might be the result of him being dumb?"

"Oh yeah. The first time Sally went inside him, she was barely able to last a minute. She complained like crazy about how much she hated it. But I kept putting her back in there, and she got stronger and stronger. From what Simon said, the first couple times he put you in his step-sister, you lasted a lot longer than he did."

"Hmm, that seems consistent with what I've seen," said Lauren. "Simon, how long did I last when I was inside Jenny?"

I thought about it for a moment before answering. "The first time you got tired pretty quickly, but I think you lasted longer than Sally did inside Adam. The second time was definitely longer than the first."

"This is my third time inside Lauren. I didn't time my first experience, but I believe it was around twenty minutes. The second time I did record the length, and it was twenty five minutes and 17 seconds. So our current hypothesis is that we get stronger with more practice?"

"Definitely," said Emily. "I put Sally in Adam at least ten times the first day. We kept making little changes, and she lasted longer and longer. The next day she lasted ten minutes at a time. She'd probably last a whole hour in your big brain, Doc."

Lauren looked at her slyly. "I notice that you keep referring to your slug as 'she'."

Emily grinned and turned around to pat Adam on the head as he continued eagerly massaging her ass. "She doesn't really like being in Adam. When we find her a permanent host, she wants a woman. But let's talk about that later."

Lauren nodded. "That's fine, but I'd still like to try getting inside of Iris, the young lady in the lab. It would be good to confirm that it's more effort for slugs to stay in dumber brains."

"Oh, we'll definitely do that," said Emily. "But I have another experiment that I want to do with her. You definitely won't have time to change much so we'll have to talk to her about it first. Come on, let's go." She turned to look at Adam. "Adam baby? Put the slug back in, she's had enough rest."

"Yes, Emily." He got to his feat and picked up the plastic container that he'd put on the desk. He opened it up and pulled out the slug, raising it to his ear.

After the slug entered him, his dopey expression changed to a more annoyed one. He looked at Lauren, then back at Emily. "Another ****?! You're breaking our agreement!"

"Relax!" said Emily. "She was already a ****, we just reassigned her from Simon to me. No more damage done, just cleanup."

Adam, or actually Sally, looked at the monitor. "I'm not sure I like the idea of these experiments."

"Oh, you will," said Emily. "Don't worry, this is all about helping you get what you wanted. Wait here, you're going to like this. Doc, lead the way to the subject."

Lauren lead us out of the room and down the hall. A moment later we entered the room where Iris was sitting.

"Iris!" said Lauren. "I'm sorry about keeping you waiting. These are my assistants. We're ready to start the experiment."

"Okay," said the girl, putting away her phone. "What do you want me to do again?"

Lauren looked at Emily, waiting to find out what the girl wanted to do.

"First," said Emily, "Dr. Green, explain how to make a pituitary gland grow bigger breasts."

"What?" asked Iris, totally confused.

"I..." Lauren paused. "I don't think I can do that. It's not a thing I can explain to a human."

"You don't have to explain it to a human. Just make sure it's in terms you'll understand when you... you know... get to the next part."

Lauren smiled, understanding immediately. "Iris, do you know what a pituitary gland is?"

"Um, it's a thing in your brain? It makes chemicals, I think?"

"Very good! The important thing to remember is that if you want to find the pituitary gland, it smells like yellow."

"Huh?" said the confused Asian girl. "I don't get it."

"You don't need to get it, just remember it. Now, how do you find the pituitary gland?"

"It... smells like yellow."

"Very good! Now, to make it open up, You have to squeeze it as hard as a summer day."

They continued like this for several minutes. None of it made any sense to me, and Iris had more and more trouble remembering the confusing terms as they went on. However, they eventually got to a point where Lauren was satisfied. At that point, Lauren walked behind the girl, and Emily talked to her about parties for a minute to distract her. Sam came out of Lauren's ear and Laruen walked back around in front of the girl.

"Now," said Laruen, holding out her hand. "This is a slug."

"Ew!" yelled Iris. "Why do you have that! I am not touching that!"

"Don't worry, don't worry," said Lauren in her most reassuring voice. It was amazing that she was fully in control now, she was just continuing where Sam had left off without missing a beat. "I just wanted to gauge your reaction and get your blood pumping. It's all part of the experiment."

As Lauren walked back behind Iris, Emily said, "So, you were telling me about a party this weekend?"

"Um, yeah." Iris watched Lauren at first, then turned back towards Emily and relaxed as the professor moved behind her. "It's going to be huge! There will be so many hot guys there! I'm going to-AHHHH!"

Lauren had stuck Sam right against Iris' ear, and the girl was twitching and squirming as Sam went inside her. A drop of blood ran out of her ear, and then she stopped squirming.

"What was that?" said Iris. "What's happening?"

"You're not Iris anymore," said Emily. "You're that slug you saw a second ago. This is Simon, your master."

Emily pointed at me, and Iris looked at me. "I'm... the slug. Yes, that feels right. I guess it feels right, it's hard to think. You're... my master? Yes, I want to please you. This is so weird, why do I remember being Iris if I'm the slug?"

"You're using Iris' brain," I said. "Right now, don't worry about that. Just do whatever these ladies tell you to do."

"Um, okay."

Yeah, still dumb, even with Sam inside her.

Lauren moved back in front of her. "A few minutes ago I explained to Iris how to make the pituitary gland release the right amount of hormones to slowly increase the size of your breasts over the course of a month. Do you remember those instructions?"

"Uh... yeah, I think so."

"Well, Simon really likes big breasts. With your help, he's already enjoyed mine and his step-sister's."

Iris turned to me. I nodded. She turned back to the professor. "I guess... I should make my breasts bigger?"

"Yes, exactly! Do it just the way I described, okay?"

"I'll try," said Iris. She closed her eyes and concentrated. After a minute she said, "This is really hard. I'm getting tired."

"You can do it," said Emily. "Just focus."

After another minute Sam said, "Okay, I'm done. Can I leave this brain now? I don't like it here."

"Not yet," said Emily. "Iris, program the brain you're in to forget all this as soon as you leave, but have her call up Simon once a week for sex."

"You want me to have sex with him?"

"Yes, once a week. That way we can keep tabs on your progress. I'm assuming Iris is a sorority girl who has had plenty of sexual partners?"

"Yeah, I lost count after twenty."

"Perfect. Give Simon lots of notes, make sure he's a good fuck. Okay?"

Iris' eyes started to flutter. "Okay... it's... done. I'm... so tired."

Her head lolled over to the side. Sam slid out of her ear and I grabbed him.

Iris looked back up. "Is it... is the experiment over? I'm so fucking tired."

"Yes, you did very well, dear," said Lauren.

Iris looked over at me. "Hey, you're kinda cute." She held out her phone. "Here, gimme your number."

A hot girl was asking for my number. For sex. Technically, I should have been ecstatic. In reality, I only put my number in her phone because I hoped Emily was trying to train me to be a good lover for her.

If that was the case, I was determined to satisfy her.