Sam's head, neck, shoulders, and upper torso moved in one direction, but a sudden invisible force grabbed the other half of his body, keeping him from launching himself at the drawers. The force - being demonic - was much stronger than that of Sam's current physical capability. He couldn't fight it, even if he had the time to prepare himself to do so (which he definitely did not). Sam's body immediately slammed itself back onto the ground, shoulders and the back of his head twinging painfully from the sudden, rough impact. Sam wasn't too worried about pain. Getting slammed around a little by his wife (unfortunately, it wasn't in the good way that Sam used to love) had nothing on what Lucifer had done to him in the past. What he did to him every day. There were worse things than this. Much, much worse.
Sam laughed in a maddening tone as Ruby climbed on top of him, her tiny hands seizing at his wrists without much trouble. "Gonna stop me? Hahaha - that's...that's...oh." Sam raised his brows upward, looking genuinely surprised. "Tie me down? Ruby, that's not nice. I don't want you to tie me down. Don't tie me down, Ruby." Sam looked up at her, wrists straining against her grip. She was strong. He had almost forgotten how much. Sam had been so used to seeing that gentle side of Ruby; to picturing her in his head, imagining the way that she used to be with him when the world wasn't so dark and cold and hell infested. He liked thinking about that Ruby. Not this one. This one was bent and broken and angry. It was his fault, too. Always his fault. "This isn't fun," Sam told her, suddenly worried. "I don't like it. I don't wanna..." She was sitting on him. Ruby used to like sitting on him. They would hug and cuddle like people in love were supposed to do. And the sex. Lots of that. Was that what Ruby wanted? Was that why she was talking about ropes and sitting on him like this? She wanted to tie him down, but Sam wasn't feeling it. He had always liked being the aggressive one, not the other way around. "This isn't kinky at all." Still, if it was what Ruby wanted...
"I can't take my clothes off if you're sitting on me," Sam said, quite seriously. "I don't know how you expect to get anywhere with this if I'm still -"
Sam stopped pushing at her hold on him. He let his head flop back against the tile, breath slowing. He went quiet for a real long time after that. Ruby had ranted at him; she had gotten her point across and, in doing so, had managed to hit the nail right on the head. Big brother couldn't trust you the way I did. No, he couldn't. Dean didn't trust Sam, not in the slightest. Dirty, bad, wrong thing he was - who could blame him? He had always been wrong. Evil. Always. Dean had been right not to trust him, Lucifer had long since proven that. But it hurt. It would always hurt, because Dean was the one person in the world that Sam needed acceptance from. He was his family. His big brother. The one who had raised him up when he could barely walk or talk for himself. Dean kept Sam fed, he got him to bed on time, he taught Sam to tie his shoes, he taught Sam things about the world that he would have never figured out on his own. Dean gave him courage. Dean gave him strength. He kept Sam on his feet when the world was crashing down all around them. He had been all save the world or go down swingin' and Sam had been more than content to jump into that sway of things at his side, so long as it was at his side. And they did it together. They fought together, they lived together, they kept each other alive inside and out and, of course, Ruby wouldn't get that. She didn't understand how things were for either of them growing up, nor did Ruby understand what Sam and Dean had gone through together. She couldn't and wouldn't ever understand and Sam had long since accepted that.