Outwardly, 2B could not acknowledge any feelings that she may or may not have developed for 9S. She struggled to be able to understand those feelings herself, so she couldn’t have hoped to explain them or attach a label to them even if she had been free to do so. The very nature of her true mission made it wise to avoid forming emotional attachments with anyone, and him least of all. But she could not help herself. The more time she spent around 9S, the harder it became for her to maintain that aloof exterior and keep him at a distance. Of late, the struggle had gotten even greater, both to try and understand what she was feeling, and to refrain from bringing it up. Out there, 2B had to ignore whatever it was that she was feeling and limit her focus to doing what needed to be done.

But in here, in her room back in the Bunker, she could give in to these strange feelings that she still didn’t understand. She might not understand why looking at 9S made her body feel abnormally hot sometimes even in innocent situations, but in here, she could remove her dress and skirt and allow the new images that had begun appearing in her head of late to guide her.

She’d encountered others who professed love for one another. Was that what this was? 2B knew too little about such things to be able to tell if this was love, or if it was something less wholesome and meaningful than that. But she knew that rocking her hips back and forth to grind against her hand made that heat she felt spread and grow, and thinking of 9S as she did so enhanced the sensations.

YoRHa units were not typically equipped with genitalia, but a unit could choose to request one. 2B couldn’t allow 9S to know of her feelings, but she could rock against her hand and moan quietly in the privacy of her room. In her head, it was 9S beneath her, and it was his penis rather than her own fingers that she was rocking on. She didn’t know if he had chosen to request genitalia, or which option he might have chosen if he had. But the penis would have fit so well inside of her, so as far as her imagination was concerned, that was what he had.

She pictured his hands on her hips, and his groans felt so real that she could almost hear them. 2B had a feeling that he would be happy to let her climb on top of him like this if she asked. If only she could! Sadly, that wasn’t an option for her. Her mission was painful enough as it was with their current level of distance. If she actually brought him into her bed and did this with him for real, her ability to carry out her orders would almost certainly become compromised.

Her imagination was her safe zone. Here, she could explore these strange feelings and wayward desires. She didn’t have to ignore this heat; she could instead give in to it. Her hips moved even faster, and she wiggled around to move into a better position. It wasn’t enough, though. Thinking of the very detailed materials she’d studied on the act of sexual intercourse made her want something inside of her. What she wanted most of all was 9S’ penis, but since that wasn’t available to her, she had to resort to something else.

2B rolled over onto her back and brought her hand between her legs. Grinding against her fingers was not good enough. She needed penetration, and she knew by now how good a pair of fingers inside of her could feel. She also knew that jabbing them deep inside did not bring the most pleasure. 2B’s fingers curled back to stroke her insides, and she rubbed her thumb across her clitoris as well. Her research had not misled her about how sensitive she was there. Even light pressure on her clitoris could get 2B excited. But she was already excited, and grinding against her hand had her ready to jump straight to the firmer touches and faster strokes.

She didn’t cry out loudly, as she found she wanted to do. Even within the relative privacy of her room in the Bunker, she knew that making too much noise could only increase the chances that someone heard her and came to investigate. What would she do if she was caught in such a shameless state, pumping two fingers inside of her sex and rubbing at her clitoris? And 9S came to see her as much as or more than anyone else. What if he saw her like this?

The thought should have embarrassed her, but instead it made her fingers move even faster. She let out a little gasp of pleasure at the confusing excitement that filled her when she imagined 9S coming into her room and seeing her with her dress off and her legs spread. He would probably have stammered and run off if that really did happen, but the 9S who existed within 2B’s imagination in that moment came to join her. He stripped nude, climbed on top of her and thrust into her, taking over for her and relieving her pleasure better than her fingers possibly could.

2B whimpered softly, and her hips and buttocks humped up off of the bed as she fingered herself to a climax. That release of pleasure was still fairly new to her, but this one was the biggest of all by far. She’d gotten better at learning how to pleasure herself with each successive attempt, but she knew that imagining 9S coming in and fucking her was the biggest reason her legs were still shaking after her butt settled back down on the bed.

She wished that she could feel it for real, even if only so she could hopefully understand exactly what it was that she felt for him. But until and unless it one day became possible for her to break the cycle that bound her, these private moments of sexual exploration would have to suffice.