Would it be possible for a borrower to have the ability to temporarily borrow the knacks of others around them? (I’m thinking something like their own knack being the ability to use the knack of the last borrower they touched.)

I’m sure it’s possible, but it would be a knack that takes a toll on its user more than a regular one would. Borrowers aren’t quite X-men level with their abilities. They come with severe disadvantages and start out weaker to begin with. 

May 22nd excerpt:

“Now, let me see if you’re hurt,” Dean said, gently commanding. He brushed a finger under one of the tiny arms, trying to coax the kid out of his huddle. Unlike Sam, Dean rarely took no for an answer when it came to a kid in trouble.

May 21st excerpt:

Oscar took in a shuddering breath while his body was still racked by sobs and his tense shivering. Any shot at answering, even with a weak plea for his life, was lost as soon as he peeked his eyes open. A huge face, bigger than he knew how to fathom, still hovered overhead, staring at him. After years living under the rule of don’t be seen, a weird mix of fear and guilt locked up his reply.

They were so loud anyway. They probably wouldn’t hear his meek little voice if he spoke.

May 20th excerpt:

Dean rubbed his face. “Okay. We can just…” He looked at the kid again. The little guy was crying while they argued. “Sam, did you hurt him?” Dean held out his hands expectantly. “Lemme see ‘im.”

That got Oscar’s attention. He looked up quickly only to duck his head again, too intimidated by the teenage human. He looked so stern. Ready to scold Oscar for sneaking around in their room to steal food.

What would have happened if Cas didn’t manage to shrunk Dean back down? Would he be forced to become Bobby’s newest resident (and even bigger bottomless bag)? And how would he and Sam interact again (some of the Lounge ideas would be good, but still, angst)? Also I can imagine Bowman’s shock when Bobby goes instead of Dean and Sam somehow explains his brother ended up more giant than ever (prompt, maybe?) ~Sassy

They’d have to get him to Bobby’s, first! They took a road trip to Rufus’s cabin for the setup, knowing she wouldn’t fall for the trick at Bobby’s place. 

He probably would have knocked down most of the cabin if Cas didn’t fix him, simply because he had no place to go, and no doors big enough to crawl out of. All scrunched in a corner, and the only reason he couldn’t try and stop Celeste himself was because of the pain he was in from his bones expanding.

((There’s a good reason the victims of her curse often are unconscious for the good part of a week after it hits. Extremely compacted, extremely fast.))

The main thing about the Lounge is, Gabriel buffered it for size different interactions. The borrowers can’t be deafened if you yell, and no one can get hurt. Sam and Dean wouldn’t have that luxury. They’d need an interpreter, at least at first, someone who can talk to each of them separately.

I’m pretty sure Bowman would be all sorts of offended if he hears Dean is more giant than his giant now. Considering how serious the problem is in Wellwood, Bobby would definitely hit the road to help.