So I actually got this idea from an author called kelhome from their story named Family Ties. Go check them out, it's a really great oneshot, all credit for the idea goes to them! :)
Ben was sitting at his kitchen table doing his math homework when he heard the doorbell ring. Perking up, he listened quietly as his mother swung the creaky door open. He immediately recognized the voice that floated through the house. Ben almost couldn't contain himself, he bolted from the kitchen into the entrance hall and stopped, frozen solid. Dean was only half coherent, staring at nothing through lidded eyes. The only reason he was still up was because Sam was next to him, supporting him. Ben's eyes widened, tears rushing down his cheeks as his mother stepped aside, sparing an apologetic glance at him before leading Sam to the couch. She didn't even care that Dean was bleeding all over her upholstery. She only cared that he got the care he needed.
Oh god, there was so much blood. Ben thought he was going to be sick. He almost collapsed as he stood at the entrance to the living room. He wanted to blame Sam for this, but Ben knew he never could. Dean would always choose Sam over anyone. Ben understood that, but the contempt that gnawed at him towards Sam was hard to ignore.
But as Ben watched Sam bending over his brother, speaking softly with a reassuring smile on his face as he practically held Dean's guts in for him, Ben just couldn't find the energy to be mad at him. Instead, he stepped into the living room, taking a deep breath to steel himself.
"What can I do to help?" He asked bravely, though his voice trembled slightly. His mother started to protest, but before she could say anything, a slightly slurred voice interrupted her.
"Ben no." Dean was struggling to sit up, trying to find the young boy in his hazy vision. "Don't want you…seeing this." He gasped, easing himself back onto the couch. "Protect you…I'll protect you." Ben didn't miss the hurt expression that flashed across Sam's face. It was only there for a nanosecond before he hid it again, but Ben had seen it. Guilt started to chew at Ben, but he didn't have long to react.
"Ben, could you just go wet a wash rag for me with cool water?" Sam asked, smiling over at the younger boy in reassurance. Ben couldn't understand how Sam managed to be so calm. Dean was practically dying under his hands, but he was completely relaxed. Ben knew that wasn't true. Sam's shoulders were tense, his back muscles coiled up with stress. He was hiding it for the sake of Ben and his mother. Ben couldn't help the gratitude that showed on his face. He wasn't sure he could handle it if all of them were hysterical.
"Here." Sam nodded in gratitude, taking the wet rag and placing it across Dean's forehead.
"Lisa, I'm going to need some pain killers. The strongest you can find." He commanded, immediately taking charge. She nodded and hurried off towards the medicine cabinet. "Ben, run out to the Impala and get the first aid kit. It's in the back seat." Ben rushed out to the Impala and wrenched the door open, grasping at the army green box that he assumed was the first aid kit. He struggled to lift the heavy box, closing the door with his hip before hurrying back inside. Sam was bent over Dean, cleaning up his ravaged torso. The worst of the bleeding had stopped, much to Ben's relief, but he almost couldn't bear to look at Dean's chest. Three large cuts ran the length of his entire torso. The young boy didn't know what had caused it, and he never wanted to know. "Thanks kid." Sam smiled softly at Ben before opening the box and taking out a needle and a spool of black thread. "Sorry Dean, this is gonna hurt like a bitch." He breathed, steeling himself and entering the needle into Dean's skin. He worked quickly and efficiently, even with Lisa and Ben watching over his shoulder. He had done this too many times to get distracted by things like that. Dean's life was on the line here, and that meant he needed to focus all of his concentration on trying to make sure Dean didn't croak.
When he finished up, he tied off the string and cut the excess before sponging up the last of the blood. The red, angry cuts stared out at him as Lisa helped him put a new shirt on Dean.
"Sam, you're exhausted. Why don't you go take a shower and I can make you some food." Lisa offered softly, placing her hand Sam's tense shoulder. He turned to her, shaking his head with a strained smile.
"No, I'll stay with him. Thanks for everything Lis. I don't know what I would've done without you." He nodded his head in gratitude as she dragged a chair in from the kitchen. He positioned it next to Dean's head and lowered himself into it. Lisa didn't miss the wince that he gave as he finally made it down, but decided not to mention it.
"What happened?" She whispered, glancing up the stairs to make sure that Ben really was in his room. Ben hid around the corner, holding his breath until Sam started speaking again.
"It was…well, actually I have no idea what it was. It was big, and obviously had some pretty wicked claws. We were in the middle of nowhere, and your place was closer than the motel. I just needed somewhere to stitch him up, and I wasn't about to do it in the freaking Impala. You were the first people I thought of." He admitted, smiling softly up at her. "You always are, when Dean gets himself hurt. I think to myself 'who can I take him to if he gets himself in serious trouble?', and the answer is always the same. It's you two." Lisa smiled, despite the tears that were welling in her eyes. Whatever she might have thought about Sam had been completely wrong. He wasn't a heartless bastard. He was just a younger brother trying to get by in life and keep him and his brother alive. She bid him a soft goodnight and trudged up the stairs. Ben listened softly as she moved around in her room before her light turned off. A few minutes later, he heard soft snoring coming from her room. The lights downstairs shut off, leaving the house in darkness, but still Ben didn't move.
He didn't know how long he sat on those stairs, listening to Sam murmur to Dean's limp form. He wanted to go down there and throw himself into Dean's arms. He wanted to beat the living crap out of Sam for letting Dean get this hurt. Suddenly, choked sobs from downstairs interrupted Ben's thoughts. He cocked his head. That couldn't be Dean. He'd heard Dean cry before, and he definitely didn't sound like that. The realization hit him like a ton of bricks. It was Sam.
"I'm so sorry, man. I screwed up big time on this one. You were right; I wasn't ready for this hunt. Not so soon after getting my ass handed to me by that stupid Genie. I thought I could do it Dean, and even if I couldn't, I thought I would be the one to take the beating. But now you're practically dying under my hands and I can't do shit about it but sit here, wait for you to wake up, and hope to god that you forgive me for being so stupid." Ben realized that Sam might not have it together as well as he'd thought. He sat silently on the stairs, listening to Sam sniffle before the living room fell silent for a few more minutes. "I know you're up there, Ben." Ben winced at Sam's soft call. Caught. He reluctantly stood, almost toppling over. He'd been sitting in the same position for hours, and now his legs were numb. The young boy slowly made his way downstairs, cautiously entering the living room. Sam had pulled up another kitchen chair next to the couch and patted it, inviting Ben to come sit with him. Ben complied silently. "He used to gush about you, Ben." Sam stared down at Dean, his older brother's face illuminated and dappled by the moon and clouds outside. "Brag to me about how great you two were. You want to know the honest to god truth?" Ben didn't answer, because he wasn't sure. Did he? "You two deserve him a hell of a lot more than I do." Neither Ben nor Sam heard the hitched breath at the top of the stairs. Lisa covered her mouth with her hand, eyes wide. "I've made some mistakes, Ben. But none as bad as this." He let out a dry laugh. "I really screwed the pooch this time. Dean knows that. But I know he'll forgive me, just like that. He won't let me get in a word edgewise, because that's just the kind of person Dean is. He doesn't…hold grudges against people he loves." Ben couldn't figure out why Sam was telling him this. Maybe he was just babbling? "The point I'm trying to make to you is that maybe you should be like Dean in that one aspect. He didn't want to leave you guys. He fought tooth and nail to find a way to stay with you. But you don't understand the kind of risks we take. This is an occupational hazard." He gestured to Dean's softly breathing form. "And there's no way that our kind of lifestyle leaves room for the apple pie family. Not without putting you two in danger." Sam choked up again, and Ben felt tears roll down his cheeks. "I had a girlfriend once, Ben." Lisa had crept down the stairs and was sitting where she could see Sam and her son. She almost gasped out loud at the velvet box Sam was turning over in his hand. "I was going to marry her, settle down with her." He whispered hoarsely, opening the box lightly. The ring was still in there, brand new and untouched.
"What…happened to her?" Ben asked carefully, in a voice that Sam had to strain his ears to hear.
"The job got her. I wasn't in time, and she died the same way my mom did. I'm not going to saddle you with a description, but it wasn't pretty." Ben nodded vigorously.
"I understand what you're saying, Sam." Ben breathed. Sam glanced over at him, smiling despite the tears that still rolled down his cheeks.
"Nobody comes before you and your mom. Not even me. When you call, Dean drops everything and comes running just like that. It doesn't matter where we are, or whatever situation we've gotten ourselves into. He comes running as soon as you call for him." Sam informed Ben. "And I wouldn't want it any other way."