"There. Now doesn't that feel better?" Fili stood back with a pleased smile to look upon his handiwork. The boots came up to mid-thigh on the little hobbit, but it hadn't escaped his notice that her feet were actually a little snug in their leather casings, and Fili wondered again at how large hobbit feet were. Billa, for her part, stood awkwardly in boots she was practically swimming in, looking rather uncomfortable.

"No. It feels like Dwalin's about to come decapitate me for being in his boots." The halfling looked distinctly nervous as Fili took a step away and his brother giggled. The others were watching, some with amused expressions, others pitying. No one moved to help her.

"Oh, he's bathing, Billa. He doesn't need his boots." Kili grinned. "Now come on. Take a few steps and see how they feel. You might like wearing boots."

"I do NOT like wearing boots." Billa wiggled her toes and grimaced. "I can't feel the ground. It's like I've got slabs of wood tied to my feet. Help me out, Fili." But when she reached for him, the dwarf took another step back, a mischievous light dancing in his eyes.

"Come on, Billa. Don't be a spoilsport. Just a few steps."
Billa looked around desperately for a sympathetic face, but no one seemed even remotely willing to help her. Fili and Kili had started to dance around each other by that point, singing about "the halfing that lived in a shoe," which was possibly the most ridiculous thing she'd ever heard. Lifting her feet carefully and setting them down harder than normal, because of the weight and unfamiliarity of the footwear, she clomped after them.
Kili stopped first. He took one look at Billa, swaying uncertainly on one of Dwalin's huge boots while she looked for a place to put the other one down, and started to laugh. Fili joined him. If they'd intended to motivate her to move faster, they succeeded.

Billa lunged forward with a growl, yelling at them to take the boots off, and the brothers dodged away with howls of laughter. The hobbit hopped and clomped after them a short way, then the toe of one huge boot caught against the heel of the other and Billa hit the dirt hard. Fili and Kili didn't have enough time to recover from their laughter enough to get worried. In seconds, Billa was on her feet again and looking furious.
If the boots had been too big for her feet, then they might have understood better why Billa couldn't seem to stay upright for more than a dozen paces. But she tripped and slipped and misstepped and faux pas'd her way around the fire in pursuit of the brother who by now were helpless in the midst of gales of laughter.

"Wait 'till get my hands on you, you little piglets, I'll knock your heads in!" The mental image of Billa doing anything that violent was too much for Fili. He keeled over with a gasp, holding his stomach as tears of mirth trickled down his very pink cheeks. Billa caught up to him, only to misjudge the distance, step on him, and topple with a startled squeal.

"What're you doin' in my boots?"
Billa was on her back, so she couldn't see Dwalin, but she didn't need to see him in order to know the sour expression on his face. He stomped over to her, yanked the boots off her feet, and stomped away again, muttering about people that had no respect for a dwarf's property.

Billa's eyes were watering as she gingerly ran her fingers through the hair on her feet, making it fluff and curl properly.

"Very worth it." Fili sat up, holding his stomach. "Pay up." With a snigger, Kili handed his brother a number of small coins.

"I admit, Brother, I didn't think you'd have the nerve to use Dwalin's boots."

"They were the only boots big enough, Brother."