Disclaimer: I do not own The Hobbit
In the morning, Thorin and his nephews were feeling the consequence. Thorin however, was not letting his ailments deter him. He was sure Smaug had done something with the little Bilbo. When Thorin had woke in the morning the smaller man was gone, no note or any trace. His things and all that could be traced to him were gone with him. After two cups of coffee and an hour or so with his head on the toilet seat, Thorin had set off to find him. The first place he checked was Smaug's lair, only to find nothing. Next, he checked the mine, any other hotels in the area, and he contacted all his family, increasing his fruitless search. When at last he decided to fly to Bilbo's home he was sure he'd gone mad with worry. Thorin wasted no time getting there, only to find Bilbo at home with another man. He was about Kili's age and was a little bit smaller than Bilbo. Thorin flew into a rage, smashing Bilbo's things and declaring Bilbo to be evil. When he'd arrived back at the airport, he knew Bilbo'd followed him. He might have stopped if Bilbo hadn't brought along the other man. Bilbo, much to his distress, followed him onto the plane.
"Thorin please let me explain." Bilbo shouted.
"Explain what?" Thorin shouted back.
"What you're upset about." Bilbo was trying to calm down but he couldn't.
"I'm upset because you're a backstabbing lier." Thorin snarled. "Now get off my plane."
"No Thorin!" Bilbo shrieked as he planted himself firmly in front of the larger man.
"Back. Off." Thorin snarled viciously.
"Frodo is my nephew. My sister died." As Bilbo said the words he seemed to sag.
"As if I would believe that." Thorin sneered.
"Relationships are built on trust Thorin, but I see you have never trusted me. I'm sorry if you think I hurt you but you are wrong to jump so willingly to conclusions." Bilbo said seeming defeated. He turned and left the plane, Frodo following him.
About a week went by, Bilbo spent it adjusting to his new role as father for the young man. Thorin spent the time brooding and becoming ever more unpleasant. When Kili finally got a moment to speak to him in private, he asked Thorin what had happened. Thorin said he'd caught Bilbo with another man named Frodo. Kili sighed seeming disappointed in Thorin before fishing out a file from his pack and presenting it to Thorin. It had the results of a background check on Bilbo, it was preformed when they were first looking into hiring him. With it was a list of relatives. On it was Frodo's name, Bilbo's sister's son. Thorin wanted to scream. It had seemed like such a made up excuse at the time but now, in hindsight, he knew it was real. Thorin felt a tear on his cheek and he whipped it away angrily before pulling open a drawer and producing two velvet boxes. One was navy blue and the other was a soft brown. "I was going to propose." Thorin murmured.
"Go to him." Kili said, eyeing the boxes.
"He hates me." Thorin said harshly smacking them off his desk along with most of the other things on it. "I hate me."
"Go be romantic." Kili said frowning at his uncle.
"I'm not good at romance. That was Bilbo." Thorin huffed as he cradled his head in his hands.
"Well be good at it today. Do it for him uncle." Kili said.
"Ready my plane." He said softly as he slowly picked up the velvet boxes from among the things that had fallen to the floor.