Problem: Continue the following story.

While buying gas at the station, Sam decided to buy biodiesel instead of diesel. The 
Here's how I want to continue it: biodiesel was trendy.

Problem: Continue the following story.

Working in a government agency better suited Ian than Brian because 
Here's how I want to continue it: Ian followed the rules.

Problem: Continue the following story.

Kayla belonged to an important group unlike Jennifer, since 
Here's how I want to continue it:
Kayla was a very popular person.