Author Notes: Alright, this is and is not a sort of fill for a TWD kinkmeme "Daryl is immune to the zombie virus and can help provide the cure." I've actually had this idea for some time now, just never really thought I would write it out until now. I actually have another version that is not slash like this one turned out to be, but I liked this one better. This one follows season one but I haven't decided if it's going to follow season two just yet.

Disclaimer: I do not own The Walking Dead as it belongs to Robert Kirkman and AMC, but oh how I love to play with the characters. Story title comes from the song 'This is Gonna Hurt' by Sixx A.M. (It's a really great song!)

"Son of a bitch!"

Glenn stared, wide eyed at the older man. Daryl for his part was looking down at his right forearm, using his left hand to try and stop the bleeding. Glenn's eyes raked down Daryl's arm until it stopped at the drip of blood hitting the floor at the other man's feet.

"Daryl?" He whispered, his voice shaking.

The redneck looked up at the younger man, a frown on his face. As soon as Glenn saw the other man's face, he knew. It wasn't good, Daryl had been bitten. Glenn's legs gave out and he collapsed on the cold wood floor of the abandoned apartment they had barricaded themselves in not minutes before, after being ambushed by Walkers.

They had been on a supply run with T-Dog and Rick when they had been separated by the swarm of Walkers. Daryl had pulled Glenn down an alleyway and through an exit door but hadn't been able to close the door behind them before a few Walkers grabbed for him. Glenn didn't see at the time, but he knew. Daryl had been bitten then because after they didn't run into any other Walkers as they ran for the stairs and for an empty apartment.

Daryl fell to his knees in front of the Asian, mindful not to touch the kid as his hands were covered in blood, both his own and Walker. Glenn suddenly launched himself at the man, wrapping his arms tightly around Daryl's neck. Daryl sighed and wrapped his own arms around Glenn's back, holding him almost just as tightly.

"You promised." Glenn whispered harshly. "You promised you'd always be here."

"I know." Daryl closed his eyes and tightened his hold on the younger man before pulling away.

Glenn didn't want to let him go though and he had to forcibly grab the younger man's arms and wrench them away from his neck. He held onto Glenn's wrists until he was sure he wouldn't just jump at him again.

"You know what you have to do."

Glenn nodded, a choked sob escaping from the back of his throat. Daryl released his hold on the younger man's wrists and reached for the silver chain around Glenn's neck instead, pulling it up and over the kid's head. The gold band clinked together with the chain as his hands shook. He unclipped the ring from the chain, allowing the chain to fall to the ground before grabbing up Glenn's left hand again.

Glenn watched as Daryl slipped the ring onto his finger and they just sat there for a minute before Daryl released his hand and grabbed to remove his own silver chain with gold ring from around his neck. As he was working to unclip the ring, Glenn took the chain and ring from him, doing it himself. Once he had the ring and the chain was on the floor with the first, he took Daryl's left hand, slipping the ring onto his finger in silence.

"Where's your gun?" Daryl broke the silence.

Glenn reached over to where he had dropped the gun he was carrying when they had started blocking the door with whatever they could. He picked it up, his hand shaking violently and handed it over to the other man. Daryl took the gun in an equally violent shaking hand and released the clip to check how many bullets were left.

"You only got one shot," Daryl chuckled but there was no humor in his voice, "better make it count."

Glenn shook his head, "I can't."

Daryl loaded the clip back into the gun and turned to the younger man. Glenn had stood up and was backed against the counter in the kitchen, his eyes wide as they were glued to the bite wound on Daryl's forearm. Daryl sighed and slowly got to his feet, taking a few steps closer to Glenn. He saw the younger man flinch away as he held out the gun. Making a decision, he sat the gun down on the counter and turned back to the young Asian who was now pressed up against the refrigerator.

"Glenn, you know you have to." Daryl tried again, stepping closer. "I don't wanna have'ta commit suicide. Not like Jacqui chose too."

He knew it was mean to bring up Jacqui when they had only just lost her a few nights before back at the CDC, but he had to make Glenn understand.

Glenn shook his head violently, tears running down his dirt streaked cheeks, "No, I can't. I won't."

"Then we're both gonna die, Korea." Daryl was now standing right in front of the younger man. "You gotta take me out before I turn and come aft'a ya."

"Rick and T-Dog will be here soon."

"Glenn, I don't want someone else to kill me."

"Well to fucking bad because I won't!" Glenn yelled, "You promised you'd always be here, always keep me safe. Now you want me to kill you. Where does that leave me? Alone!"

Daryl closed his eyes and pinched the bridge of his nose. He heard another choked sob from the other man and when he opened his eyes, Glenn had slid down the fridge and was sitting with his legs pressed into his chest, his arms wrapped tightly around his legs. Daryl turned and grabbed the gun before returning to the kid, knelling down in front of him. He roughly took Glenn's hand and slapped the gun into it, holding it there.

"You need to do this," He growled, not even sure why he was angry all of a sudden. "I don't wanna come back and attack you when it can easily be prevented."

Glenn kept shaking his head, trying to push the gun back into Daryl's hand. The older man growled before taking Glenn's face between his hands, the gun clattering to the floor with a loud THUD. Daryl forced Glenn to look him in the eyes.

"Glenn, I need you to do this babe." He kept his voice low and calm, though he felt nothing near calm. "I need you to kill me before I kill you. Rick and T-Dog will be here soon to get you and you will go on. You will live and survive."

"Daryl, no..."

"Yes, you'll move on." Daryl continued, "Help Carol take care of Sophia. You know enough about tracking and hunting to keep the group from starving."

Daryl leaned in and captured Glenn's lips with his own. Glenn's hands clawed at the man's chest as he tried to pull him closer. Daryl broke from the kiss and leaned their foreheads together, his eyes still closed.

"Please do this for me, Korea."

He felt Glenn nod hesitantly and pull away. He opened his eyes as Glenn shakily picked up the gun and using the fridge for support, pushed to his feet. Daryl stayed knelling on the floor. He watched as Glenn pointed the gun right at his forehead. Daryl could see Glenn's whole body was shaking as he placed his finger on the trigger. Not wanting to watch Glenn pull the trigger, Daryl closed his eyes and waited.

He could hear Glenn trying to silence his sobbing and the gun clinking against the gold band on Glenn's finger as it shook in his hands. He heard Glenn take a step closer and a deep sigh.

"I'm sorry." Glenn whispered before Daryl felt a whoosh of air and suddenly something hard, heavy and metal connect with the side of his head.

Glenn watched as Daryl's body fell over with the force of the hit. He couldn't bring himself to kill his husband and no matter what Daryl told him, he wouldn't. Glenn sat the gun back down on the counter and fell to his knees next to Daryl's unconscious body. Tears were still running tracks down his cheeks as he sat there, rocking back and forth.