Problem: Continue the following story.

Logan asked Christopher to stay home a watch a movie this evening, but 
Here's how I want to continue it: Christopher was going  out.

Problem: Continue the following story.

Nick showed Brian how to put up a tent, as 
Here's how I want to continue it: Brian never went camping for multiple days.

Problem: Continue the following story.

Gabe wanted to bark tan his leather jacket for winter, so he bought some bark and ground it into a powder. The 
Here's how I want to continue it:
powder was fine and grainy.