Entry 1 - 3 months:
Recently, I paid a single mother to hand over her two children. She was on the streets and was clearly unfitted to be a mother anyway. These specific two were twins, one boy and one girl. The homeless lady hadn't named them, so I'll ask one of my assistants to do so. Otherwise, the children seem to be healthy, and I'd presume they're around three months of age. My workers and I don't plan on doing much experimenting until they're a bit older, just to ensure nothing goes wrong.
Entry 2 - 1 year:
Patients Levi and Lilian have adjusted to their new environment quite successfully over these past few months. With enough feeding and attention, they've grown comfortable and trusting of the workers I entrusted to care for them. We currently are not allowing them to meet with other patients besides each other, and my workers are instructed to wear masks at all times. This will allow Levi and Lilian to grow up only knowing each other's faces.
Entry 3 - 1 year and 3 months:
The two patients have shown signs of developing speech, so I've asked a couple assistants to begin teaching them language. There isn't much progress so far, but with time I expect the two to communicate properly with the vocabulary we've chosen for them.
Entry 4 - 2 years:
The two patients must be about 2 years old by now, and thankfully they seem to be playful with each other. However, it isn't as much as I'd hoped for. They seem to prefer my workers playing with them, and will only play with each other when they want to use the same toys. I'll start sending in my workers less often, and only when they need to be fed, taught, etc.
Entry 5 - 3 years:
This last year has been quite successful. With the help of our own children's books, the patients seem to have caught on to the idea of love, marriage, and family. They are also beginning to speak short, but full sentences. They do need improvement with their pronunciation, but that is something that can easily be helped.
Entry 6 - 5 years:
This being the age most children begin school, we have decided to change around the schedule of our patients. We will be giving them lessons more often, and even giving them some work to do with each other. The idea seems to have excited them, and they have been very cooperative.
Entry 7 - 5 years, 6 months:
The two seem to be close friends now, but they aren't developing as I'd hoped. I thought it was common for most children to play family or want boyfriends and girlfriends, but that just isn't the case for these two. To shorten the process, I've decided my workers will be providing them with small doses of hormones in their feedings. I suspect this will help them mature quicker both physically and mentally.
Entry 8 - 7 years:
Walking into the playroom, I meet with the two patients for the first time not just on camera. They're following the exercises we'd given for today. Lilian is watching her cartoons at the side, while bouncing on a yoga ball. She has small padding on her chest now, early signs of puberty. We are hoping the boy will occasionally watch her as she does her exercises, eventually developing different feelings towards her.
As for Levi, he has lessons almost daily. We've decided it'd be best to let Levi learn quicker, giving him a sense of dominance between the two. He's current at a nearby table completing an english assignment. Signs of puberty have been slower in Levi, but thankfully there are still noticeable changes. He's undergoing a growth spurt and his voice is deepening just a bit.
I announce to the two that it's time for lunch, and they immediately walk over. Today, I'll be examining as they eat, just to finally observe them with my own eyes. The workers bring their food, which I've instructed to include a higher dosage of hormones. With time, I expect them to wonder about their bodies. We will then give them a lesson on sex education, and I have high hopes for that to trigger their small minds into having interest in one another.
Entry 9 - 10 years:
Progress has been great over these past few years, and at ages 10 the patients are already at the typical stages of young teens. Their speech has developed finely, and puberty seems to be treating their bodies well.
I walk into the patients' room, not catching their attention as they continue with their own activities. Lilian is sitting at her bed brushing her hair. We've taught her to groom herself thoroughly, knowing she'll need to look attractive for the boy's attention.
Levi on the other hand is working on a reading assignment. As of lately, we've been assigning most their language works to be about sex education. We want to be sure that this will be a big deal in their eyes.
Lilian has shown more progress mentally, seeming very intrigued in the idea of love and partnership. Levi's progress has been more independent. While he shows a liking to Lilian, he cares less about the idea of commitment. Luckily, a few times on camera we have caught him supposedly masturbating. Lilian hasn't seemed to have done anything of that nature yet, but we suspect it will just take the female a bit longer.
Entry 10 - 11 years:
The two patients seem very willing to kiss open mouthed, but it feels more like it's out of their curiosity than their sexual attraction to each other. Recently, we've assigned them only one bed to sleep in together, hoping it will help their libido.
Besides their attraction towards each other, they've made great progress. At nearly 11 years old, my workers have measured Lilian to have a cup size of around C, and we are hoping her widening hips will catch the boy's attention. She has also started her period, which has made her a bit self conscious, but we are trying to remind her that it's normal.
Levi has shown great progress as well. Though he's still a bit shorter than hoped for, he's noticeably taller and much stronger than the girl. He seems to think of himself higher than her, but not in a negative sense.
Entry 11 - 11 years, 6 months:
Great news. Lilian has confessed her feelings to Levi. He seemed reluctant at first, but after Lilian's submissive explanation of just how well she plans to treat him, he almost immediately changed his mind. Later today I will have my workers teach them about partner commitment and the topic of mating.
That night, while being watched on camera by the sleep deprived scientist, Lilian thinks about today's lesson. The idea of commitment and mating gave her a wet feeling down there, and she was willing to take a new step in her relationship with Levi.
Levi is already asleep, but Lilian sits up to straddle him, calmly trying to wake him up. She bounces her hips on him lightly, making him open his eyes in confusion. He first seemed upset to be woken up, but an exciting feeling ran through his penis as her felt the friction of his sister on him.
They weren't unaware to the fact that they were twin siblings, they just weren't taught how taboo incest was. They were taught about mating in both human and other animals species, letting them think that incestuous relationships were common and even normal.
Levi's eyes immediately moved to his sister's chest. Lilian had removed her shirt, allowing her full breasts to jiggle as she grinds against him.
Levi sits up, speaking groggily, "Uh, Lilian, what're you doing?"
She giggles softly, rubbing roughly against his crotch and growing erection, "I'm your mate, we're supposed to do this. And it feels good, right?"
He lets out a groan, "Y-yeah, but we were instructed to go to sleep."
Lilian, never made aware of the camera in their room, responds, "It's okay, they won't know."
That excited Levi. He was usually very obedient to the workers' instructions, but wasn't it natural for children -especially boys- to rebel occasionally?
He wrapped his arms around his sister, pushing her harder on his crotch. He could feel her wetness through their clothing, and it out a deep blush on his face to know they'd come to this point. He wasn't really sure why he felt those butterflies, their relationship was normal and even encouraged. He shrugged those thoughts off, pulling Lilian into a kiss.
Lilian accepted the kiss immediately, moaning into it. She let her hands ride down to the hem of her nightgown, raising it up and beginning to remove her panties. This made Levi look down to watch her. He was getting harder by the second, and starting removing his own pants and boxers to free his erection.
Lilian looked happy just to see his cock, wrapping a hand around it. She couldn't help but let out a quiet moan, "It's... really big."
"Well, yeah," he scoffed, "They told us that's what happens when you get aroused."
Lilian seemed embarrassed, "Oh, r-right," but not embarrassed enough to stop touching him.
Levi moved her hand away, grabbing her hips and leading her down onto his dick. She gasps as she feels him at her entrance, "A-ah-! Levi, are we really going to...?"
"Yes, duh, Lilian. Can't you tell they've been wanting us to do this? That's why they teach us all that stuff," it's like he knew he was smarter than his sister. But that made him feel confident.
"...I thought they were just teaching us about science and stuff. So, um, they really want us to have sex and make kids? ...or s-something like that?"
"Yeah," he strokes her hair affectionately, but still making her feel less smart, "Let's just do it, maybe it'll make them happy to know we had sex."
She shyly blushes, then smiling at him, "O-okay, but we have to go slow! I don't want it to hurt."
"Yeah, yeah, sure. Just sit on it already."
Levi slowly pushes Lilian down onto his cock, ripping out a moan from her lungs. He looks at her angrily, but cautiously, "You gotta be quiet, or they'll hear us." She nods in response, trying to lower herself further onto him. Her virgin pussy has a hard time taking him in, making it difficult for her to hold back noises. Levi senses his sister trying not to moan, so he pushes her back leaving him on top of her and slams their lips together.
Lilian gasps, holding onto her brother tight as her pushes into her all the way. She bites his lip, trying to handle the pain. That leaves somewhat of a sting on Levi's lip, but that doesn't concern him compared to how badly he wants to pleasure himself and his sister.
Levi thrusts his 6 inch cock into his sister, groaning into their kiss. She's tighter than he'd ever expected, and feelings just how wet she was for him made him go crazy. He pulls back from the kiss, speaking up, "Lilian, I-i... i wanna breed you."
She screams into hand hands, "Fuck-! Yes, just fucking do it- God!"
He pulls her arms away, kissing her again. The kiss was messy, and their tongues danced as they moaned and groaned into each other's mouths. Levi's grip on his sister's hips was rough enough to leave bruises, but she couldn't care less right now. She bucks her hips onto him, meeting with his thrusts.
Lilian keeps one arm around her brother, bringing her other hand down to her clit. She moans louder, sending shivers down Levi's spine. In his mind she sounded so hot, he couldn't possibly want someone more than his sister right now.
He finally thrusts one last time, especially rough, as he cums inside her. He feels his sister cum too, squeezing his cock with her warm pussy.
Levi pulls back from the kiss, leaving a spit string between them. He finally pulls out, and looks down to see both their bodily liquids leaking out of his sister's vagina. The sight alone was enough to make him cum again. He's was painfully hard, but too tired to continue.
Levi collapses beside Lilian, embracing her possessively. He holds her tightly against him, still catching his own breath, "Lilian, let's... do this again sometime, kay?"
She buries her head into his chest, "Mmm, okay..."
The scientist turns off the camera for the night, fearing watching any longer will drive him insane. He'd surely have a lot to discuss with his workers the next day.