The first bit of light sneaking past the curtains woke Marcy from what had potentially been the best night of sleep she had experienced in months. Shifting her weight slightly, Marcy immediately noticed the unfamiliar sensation of another warm body in bed with her, and then the memories of the night before come flooding back. She had actually done it. She had gone through with her ridiculous plan, and it had actually worked.
In the beginning, she hadn't actually intended for anything to happen. She had found Greg's contraption and done a bit of research. Obviously he was embarrassed about it, doubly so because his own sister had found it. But the more she read, the more videos she watched, the more the idea of actually using the cage crept into her imagination. She loved her brother and wanted to see him happy. If this made him happy, who was she to judge?
Marcy's slight movement as she woke seemed to disturb Greg's slumber for a moment but he simply shifted a bit and then resumed the deep breathing of sleep. Marcy studied his features as he drifted away again. How far would she go? How far did he want to go? They had always been close, but what she had done to him last night... what she was doing to him now even as he slept... that was a whole different thing. Certainly society wouldn't approve, but what would they think even of his sexual hobby, whether it was her or not? She doubted there was room for empathy from the rest of the world. Marcy rationalized that nobody else would help him get this experience, so she would do her sisterly duty to help him explore it.
Easing herself out from under the covers, Marcy quietly padded into the kitchen to get a cup of coffee going. As the water began to heat, Marcy opened her laptop to refresh her thoughts on how to proceed with her brother. She was a studier. A note taker. A researcher. In the weeks since she had first found the device, she had thrown herself into discovering what could be done, and had even discovered a network of other people into the same kink. She had made a few friends on both sides of the key and longed to join that world. As of last night, she had a new title: Keyholder.
The natural light in the room darkened slightly, distracting Marcy away from her screen to see her brother shuffling into the kitchen. Disappointing her somewhat, she could see that he had found a T-shirt and shorts, but she didn't mention the transgression to him. She knew what else he was wearing, since she could feel the key resting comfortably between her breasts.
"Good morning, sleepyhead," she started cheerfully, observing that he did not have the same expression on his face. "How did you sleep?"
Greg regarded her with the eyes of a man with a thousand yard stare. She had slept great. Amazingly well. This he knew because he felt like he had watched every second of it. As soon as she had pulled him into bed with her and pressed her wonderful body against his, she had fallen asleep. His cock, confined as it was, refused to let him do the same. He could feel it pulsing in its sheath, each heartbeat reminding him that she now had control of it. Further, he was left with the thought that he had the ability, according to her, to stop this charade. And yet, did he want to?
"Not a wink," he finally responded. "For some reason I just couldn't find a way to get comfortable."
Marcy smiled and nodded towards her brother, rising to get a cup for him. He noticed that while she had put one of his T-shirt's on, she had clearly removed her bra. Marcy's breasts floated freely beneath the thin material, her nipples seeming to try to cut their way through to freedom. As for the panties, he couldn't quite tell. Her cheeks did show below the overly large shirt, but not enough to gauge much else. His cock noticed and protested slightly against the plastic to no avail.
"Well I will say," she said as she handed him a cup and sat back down, "you did keep me warm last night." She let Greg settle down with his coffee. "So let's talk for real for a second. Do you want this?"
Greg thought for a few seconds and then chided himself for the delay. "You know, I really think I do. At least for now. You were right last night in that I've been looking for a certain mood... a certain feeling, and up until last night I haven't found it. You took me someplace I have never been and I want to explore it some more."