Deep down Ruby knew this was wrong. There was something the matter with him. He'd admitted as much himself after flirting with Meg. Meg of all people. It made Ruby sick just to think of it, or of him wanting anyone else at all. He had her, he told her often enough that he needed her. That she was everything to him. So then why was he flirting so much, sraring at other women. They didn't deserve him. They weren't willing to do whatever he needed just to keep him happy. And she would. There was no denying that. Sam was all there was to her, and those women, those whores that looked at him like he was a piece of meat to be devoured. She'd make them sorry too. Them and Dean, Dean who he needed in his life, his Mom and Dad, his new found brother. His friends. How dare they take his time from her. Dean with his many millions of issues. Sam didn't need them. he just needed her.
She'd dressed as well as she could manage for not being in their own bedroom, tight dark blue jeans and a top that left very little to the imagination. And the boots, the left one carrying a knife that proved that he needed her. Sex, she supposed he could get wherever he wanted though not nearly as good. But this...her blood, her tainted blood. He could have that only from her and only when she allowed. And she knew how wrong it was to let him. Of course she knew. But the things he'd said and the promises he'd made. Sam liked to hurt. So did Dean of course but he was so bitter from hell even still, Sam had never encountered that, he just liked pain, giving it out to people, being hurt in return on occasion. And Ruby could take it, she'd taken the Rack, there was nothing she couldn't take. So she let him indulge now and again, it went well with his need for control, for dominance.
Closing the heavy door behind her and latching it in place from the inside Ruby hadn't felt so utterly aroused in a long time. This was the room built to trap her kind. No way out for a demon in here, and now, thanks to her wish. She could just walk in, walk around, through the traps if she wished. It didn't matter though. This place had a bed, it had restraints, it had walls thick enough that no one outside would hear her and she was pretty sure Bobby had stopped caring.
Door securely latched and key placed at the far end of the room until they needed it. Ruby dropped her bag on the floor and stood, just inside, at the edge of one of the traps waiting for word from Sam. He controlled this of course. Because that was how he craved it. She'd already gotten herself more heated up just from their conversation a few minutes before, and now here he was. And she was his. Her and no one else. That was how it should be.