Disclaimer: I do not own Supernatural

Sam started doing cases alone while Dean worked relentlessly on finding and fixing Cas. The angel had said yes, and wanted Lucifer on earth, which made matters more difficult. Dean put his head down on the dusty old book he'd been reading.

"Heyya Deano." Gabe said from his perch on a cloud. He was licking a lollipop, various sets of golden wings hanging casually behind him.

"Gabe? You're dead." Dean said looking suspiciously at the angel.

"No I was mostly dead which is still slightly alive." Gabe tsked. "But I went back into hiding because if any of the angels find out about me..." He dragged the lollipop across his neck.

"So you just left Sam? He loved you so much." Dean said angrily.

"Yeah I know, real douche move, but I need him safe more than I need him in my bed." Gabe said softly. "Anyway, I hear Cassie went and got a Lucy to crawl into that awful trench coat."

"Yeah." Dean said sadly.

"I helped you last time and almost died so I'll stay benched for this one, but he can't defeat the darkness. It took every archangel in heaven to gank that baddie and a lot of us died. So you better get to Cas, tell him that, make him force Lucy out and get that little shit back in his box." Gabe said taking a bite out of his lollipop, making a loud crunch.

"How do I find him?" Dean asked. Gabe shrugged.

"Get a witch to do a locator spell? Or you could just try praying."

Dean sat up, the dusty paper stuck to his sleepy face.

"God fucking damnit." Dean growled. "I pray to Cas to get his cute little ass over here right now!"

"Dean." It was his voice, the rough and adorably confused voice of his angel. But the soul behind the voice wasn't his. "It seems this body has muscle memory. You call and the body just...acts." Lucifer said. "Or maybe I was just curious."

"Shut up. I need to talk to Cas." Dean said.

"Castiel is not available at the moment, may I take a message?" Lucifer asked in a sing-song voice.

"Sure, Cas, I know you can hear me and I know it hurts to fight him, but you have to."

"After I've been so nice to you." Lucifer growled advancing on Dean.

"Cas, I know you're watching, and I know you remember all the times we've done the impossible before. We will do it again." Dean said as Lucifer slammed him against the wall, forearm crushing his neck into the concrete pillar behind him. "And I know you know Lucifer can't do it. Not alone. So please, just come home." Dean choked out.

"Shut...up." Lucifer began pounding his fist into Dean's face.

"I still love you Cas. Please come back to me." Dean whispered. The punches continued until Dean's face was swollen and bleeding. As his fist rose once more, it came to a shuddering stop.

"D-Dean." Cas choked out through clenched teeth.

"I'm here." Dean said.

"I can't." Cas muttered. "Kill me." Dean's eyes went wide as Cas pressed the warm angel blade into his hand.

"No-there has to be another way." Dean sounded broken.

"Kill us both Dean. While I can still hold him back." Cas said.

"Fight it. Fight harder!" Dean begged. "Fight for me." Dean said kissing Cas. He felt Cas's arms tighten around his waist, pulling him close like he always did. Dean shut his eyes and held him tight, willing the dark angel out of him.