Negima: Love Chronicles

Back again with a new chapter. Hope you like it.

Summary: Satomi modifies Chachamaru so she can have sex and has Negi test it out.

Test Drive

Satomi Hakase added the finishing touches to Chachamaru’s latest upgrade. Closing the gynoid’s chest plate she stepped back and allowed her creation to sit up. The robot girl’s enhancements required work on her entire body so she was currently not wearing any clothes.

“So Chachamaru, what do you think? Do you like it?”

Chachamaru took a moment to inspect herself before answering her creator. “The new programs are online and fully functional however I cannot detect any differences as of yet.”

Satomi smirked, “Oh trust me; you’ll see some big differences once we give your upgrade a test drive.”

“I see, and how may I ask will we go about that?”

“I was hoping you’d ask that.” She went to the door of the lab, opening it and poking her head outside “You can come in now sensei. She’s ready.”

The young boy entered the lab, Chachamaru blushing when she saw him. She tried to cover her naked body up, Negi blushing when he saw her. Satomi shut the lab door and locked it. She turned back to face the other two, seeing Chachamaru trying to hide her shame and Negi covering his eyes. It was sort of funny seeing them like that and the scientist had to hold back a giggle. Looked like this was going to be one of her more entertaining experiments.

Chachamaru looked over to her creator, “Satomi-san, why is sensei here? You don’t mean that he’ll be testing my new upgrade?”

“Yup, I figured since you like him so much that he’d be the perfect choice. You don’t mind do you sensei?”

Negi peeked between his fingers to look at Satomi, “No, I’ll be happy to help. Um, what exactly is it you want me to do?”

Satomi grinned, walking over to Chachamaru. “I just modified Chachamaru’s body so she can have sex and feel it. I made a lot of changes just for that purpose. It meant removing some armor and a couple weapons but now she’s the perfect sex machine!” She embraced Chachamaru from behind, squeezing the gynoid’s breasts and surprisingly earned a moan from her. “Her skin is softer, her breasts are more realistic and best of all,” Satomi reached down with one hand to grab the robot girl’s crotch. “Her pussy is fully equipped to handle a nice hard cock, complete with a self lubricating feature. So how about it sensei, wanna try her out?”

Negi’s entire face was red, “I…I don’t think I should. I’m her teacher and…”

Satomi scoffed, “Details, details. I…no, Chachamaru needs you sensei. If we don’t test her new systems and make sure they work right then Chachamaru may face problems down the line. That’s why we need to make sure that everything’s fully functional. You don’t want anything bad to happen to Chachamaru do you?”

“Well no, but….”

“Good, then get started. I’ll be watching the entire time to take notes on how Chachamaru does as well as film the event. If this works then I’m going to want it documented!”

Before Negi could voice his opinion on all of this, Satomi grabbed him and stripped him naked. The scientist then shoved him towards Chachamaru and went over to take a seat so she could observe everything while she filmed it with a stationary camera set up on a tripod.

Negi covered his privates with his hands, still not looking at Chachamaru. Satomi’s upgrades had made her body look much more convincing. If not for her joints and ears one could mistake her for a normal girl. Chachamaru blushed but didn’t let the fact that she and her sensei were both naked keep her from the task at hand. She knew all too well how important it was for her to properly test her new systems, and the fact she got to fuck Negi only made it more tempting for her. She knelt down in front of Negi, placing her hands on his cheeks.

“Please don’t be shy sensei; I assure you this is just as embarrassing for me. But I’m very grateful that you wish to help me test out my upgrade. Please allow me to thank you by letting you be the first to enjoy my body.”

With that said, she pressed her lips to his. She was mildly surprised to feel his lips as she kissed him. Satomi had made sure to have it so Chachamaru could even enjoy something as simple as lip contact. As Negi began to enjoy the kiss, his moved his hands way from his crotch and wrapped them around the robot girl. The gynoid sighed and deepened the kiss. She slid her tongue into Negi’s mouth, earning a small moan from the boy.

Breaking the kiss, Chachamaru smirked at the flushed look on Negi’s face. The sensual kiss had activated her new programming and giving her new confidence that she wouldn’t have had before her upgrade. She took Negi’s hands and guided them to her breasts.

“Here Sensei, would you like to play with my tits?”

Pressing his hands to her chest, Chachamaru was pleased to feel him take hold of them and give them a little squeeze. The gynoid moaned, a jolt of pleasure surging through her circuits. It was such a foreign, yet amazingly enjoyable sensation for her. Negi continued to fondle the artificial boobs, practically mesmerized by what they felt like.

“It…it’s like they’re real!”

Chachamaru blushed, taking the boy’s statement as a compliment. Over in her seat, Satomi looked up from the notes she was scribbling down as she watched and recorded the two.

“Oh? And just how do you know what breasts feel like sensei? Been fooling around with some of our classmates you naughty boy?”

Negi blushed, “No! It’s just that when some of the girl’s hug me it’s sort of hard not to…notice them when they’re in my face.” Satomi giggled, knowing what Negi said was true. The boy looked over at her, curious. “So, how did you know to make them feel so realistic Satomi-san?”

Holding back a laugh, Satomi grabbed her own bust. “I happen to have my own pair you know, I should know what they feel like.”

While he had been speaking to the other girl he had stopped playing with Chachamaru. With the loss of his gentle ministrations the robot girl let out a small whimper and regained his attention. Negi returned to his earlier actions, only this time taking one of Chachamaru’s nipples into his mouth. She gasped, the feel of his lips and tongue on her breast blowing her mind. It was getting to the point where she found herself unable to wait any longer. She wanted him and wanted him now.

Chachamaru pulled him from her chest and pushed him down onto his back. She pressed her lips to his again, engaging him in a passionate kiss. Her tongue forced its way into his mouth and assaulted his own. The boy could barely keep up with her and before he knew it, the kiss ended, Chachamaru now making her way down his neck and chest, leaving more kisses as she went. Her new programming completely taking her over, she went down to his crotch and took hold of his member. All the attention had aroused him a little, but not completely, something Chachamaru wanted to fix.

Opening her mouth she engulfed his entire cock, immediately sucking and using her tongue on him. Negi was surprised to find that Chachamaru’s mouth was wet and hot, something he hadn’t thought it would be. It must’ve been another part of her upgraded body. Chachamaru kept sucking him off, bobbing her had up and down until he was fully erect. She kept going, wanting to tease him a little. Pulling him out of her mouth she swirled the tip of her tongue around his cock head, just barely making contact with it. Negi whimpered, Chachamaru’s treatment working just as she planned. Deciding she didn’t want to put it off any longer, she got up and straddled his waist.

“Sensei, please enjoy my body. After all, it’s meant solely for the purpose of pleasing you.”

She lowered herself onto him, letting out a moan and earning one from him in return. Because she was a robot didn’t have a hymen, not that she would cared anyway. Even if she had one, she’d happily let Negi be the one to break it.

Negi on the other hand was getting a good feel of the gynoid’s newly enhanced pussy. Like Satomi had mentioned before they began, it was wet from the lubricating system and unbelievably tight. He was close to the edge and barely able to prevent himself from crossing it. All that ended however when Chachamaru tried moving. The feel of his cock sliding out of her cunt as she moved her hips up a little was all it took to make him cum. He cried out, feeling his load shoot into Chachamaru. The girl’s eyes widened in shock for a moment, but she smiled when she realized what had happened.

“Do I really feel that good sensei? You’ve made me so happy, knowing I was able to make you cum. Please allow me to make you cum even more.”

She moved her hips again, letting out a soft moan as she felt him sliding out of her. Stopping when only the tip of his cock was still inside her, she thrust her hips down again and impaled herself on him once more. After a moment, Negi moved his hips to, thrusting to match Chachamaru’s movements. The two moaned together as pleasure filled them through their intercourse. Chachamaru slammed herself down hard on Negi’s cock as he pounded her with it, starting to feel a build-up in her body. As She continued to ride Negi, it grew and grew until it became too much and the robot experienced her first orgasm. Her body was hit by a wave of pleasure, her mouth hanging open and her pussy squeezing Negi’s manhood tightly. Negi came, the feel of Chachamaru’s quim clamping down on him sending him over the edge. He grabbed her hips and thrust as deeply into her, his seed shooting out and filling her.

Negi relaxed, catching his breath while Chachamaru smiled down at him. Seeing that the two had stopped, Satomi checked to see if there was anything else that needed to be done. A smile came to her face when she realized that there was something that had yet to be tested.

“Hey Negi, I hope you’ve got one more in you. You still need to fuck Chachamaru’s ass.”

A scarlet blush came to Chachamaru’s face, realizing that her creator was correct. A mischievous grin came to her face as she got off of Negi, his semi flaccid cock catching her eye. She got down on her knees and took a closer look at his member, covered in a mix of his own seed and her artificial juices. Taking hold of her breasts, she positioned Negi’s dick between them and began to rub him with them. Negi cried out at the new feeling of the gynoid’s soft breasts on his cock. Chachamaru let out a giggle, enjoying the reactions she was getting from Negi. It didn’t take long for Negi to become erect again from the treatment. Chachamaru turned around to get on her hands and knees and stick her rear into the air, wiggling it.

“Come and get me sensei.”

She reached back and grabbed her ass, spreading the cheeks and exposing a small hole meant only for the purpose of being penetrated. Negi went to her and brought his member to her ass, sticking it in. Surprisingly it went into her ass with no resistance, clearly a part of the upgrade. Chachamaru felt him start thrusting immediately, letting out a moan as he did so. He grabbed her hips tight and pounded her tight ass, clenching his teeth and letting out a grunt.

From her place off to the side, Satomi watched in awe. Negi was completely taken in by lust, fucking Chachamaru like an animal. She felt herself becoming curious to know what it would feel like in Chachamaru’s position right now. Feeling a damp spot in her panties, she reached down and tried to touch herself inconspicuously while she watched the two in front of her. The sight of her creation crying out in pleasure while Negi pounded her ass was highly arousing for the scientist. She had to bite down on her lip to keep herself from moaning aloud.

Negi thrust into Chachamaru harder, feeling the familiar build up of pleasure just before orgasm. Shoving into her one last time he grunted and came, sending Chachamaru over the edge as well. Her eyes rolled into the back of her head as she felt Negi inseminate her for the third time that day. Satomi blushed, finding it hard to believe how human-like Chachamaru had become due to the upgrade.

Negi pulled out of the gynoid, falling back on his ass and panting. Chachamaru sat up, feeling the contents of both her ass and cunt stir inside her. She turned to look over at her creator, about to ask if there was anything else to do when she saw just what Satomi was doing. Still running under her new programming an idea hatched in her mind. Returning her attention to Negi she smiled at him.

“Sensei if you don’t mind, perhaps Satomi-san should get a turn as well. After all, it’s only right to show her some gratitude for what she’s done.”

Negi smiled back at her, “Of course, I’d be happy to.”

Chachamaru stood and went over to the other girl, picking her up and carrying her over. Satomi squirmed in Chachamaru’s grasp, “Hey, put me down! I never agreed to this!”

The gynoid set her down and stripped her, ignoring the resistance she tried to put up. “Relax Satomi-san. Sensei is an excellent lover. He’ll ensure you are properly treated while he makes love to you.”
Satomi blushed, “B-but I’m not ready to lose my virginity yet!”

She felt a hand grab her ass, Negi’s hand. “Then I’ll just put it in here instead.”

Before Satomi could say anything in response, Chachamaru forced her to bend down. Negi lined his cock up with her ass and shoved it in, making Satomi cry out. Chachamaru placed her hand on the girl’s quim, caressing it.

“Then while Sensei enjoys your ass, I shall please your vagina.”

Chachamaru’s fingers came to life, vibrating and earning a moan from Satomi. Chachamaru smirked, loving the reaction.

“Does that feel good Satomi-san? I’m glad you’re enjoying it; after all it was your idea to install this feature so I could pleasure myself if I wanted. However I find it much better to be able to use it on you as well.”

“C-Chachamaru…”

The gynoid hushed her creator and kissed her on the lips. She gently fingered Satomi, the girl completely forgetting anything and everything as she let herself fall victim to the pleasure she was receiving. She forgot that this was supposed to just be between Negi and Chachamaru, she forgot that she had been pulled into this without giving her consent, and she completely forgot that she had a video camera recording everything that they were doing.

End.

Well, sorry for the wait. I took a little break from writing so I kinda postponed finishing this little chapter. Hope you liked it.