She uses the coin to make someone else Derek’s girlfriend.

For a second, Derek thought she was going to reach out and touch him with the coin, to change him too, but instead, to his relief, she pulled out her phone and showed him her friend list on their social website of choice. “So, anyone you like?”

Realizing what she was implying, he looked through the list and saw all the most popular girls at the school, and he blushed as he saw one in particular. “Um, I’ve kind of always had a crush on Kristy...”

Derek was afraid his transformed friend would be offended or laugh at him, but she just smiled kindly. “Oh yeah, she is so totes cute! We can both go meet up with her now, I’m her friend after all. But if you want me to change anything else besides making her wanna date you, like, tell me now.”