Emily couldn't believe what had just happened. Her brother had just left her like that? She knew she shouldn't have been aroused by you; it was wrong in so many ways. But it wasn't as though she didn't expect it. She had always been aroused by everything, after all; she couldn't help it! She felt like she was burning up from the inside out. She needed it... She needed her brother! But you had just left her like this!
She looked around her room; maybe there was something she could use to... relieve herself? She thought frantically while her mind kept going to the gutter. She knew this line of thought was hopeless because she had paid special attention to keep anything that would get her too "excited" out of her room. Just about every object in her room had been an improvisational sex toy at one stage or another. It had only been through desensitization that she could even go to bed at night without masturbating, and even then she often failed.
She started to rub herself again, fantasizing over her brother's touch, his gentle kiss. She found her mind wandering back to those moments, still fresh in her mind, and still a fresh new fetish to explore. In fact, it was such a novel sexual experience for her that she found that the mere thought was all it took for her to climax, right in front of the door you had closed in her face, as she moaned your name in ecstasy, hoping you would hear her cries.
Emily lay spent and panting on the floor, her body still shivering from her orgasmic release as she felt her arousal slowly waning down. She wanted desperately to satisfy this novel fetish. While her most recent masturbation session would be no real substitute, it would have to do for now. Knowing you would only continue to tease her, she resigned herself to continuing about her day as best as she could... But her mind kept wandering back to your touch and your smell... It was so hard to concentrate after being introduced to such an intense taboo! She sighed heavily as she put her clothes back on and went about her day...