How about for a prompt an au where stiles soul/personality is switched with Derek's and vice versa. (basically freaky Friday)
“I’m calling Deaton,” is the first thing Scott says.
“No,” Derek growls.
If Stiles wasn’t currently trapped in said werewolf’s body, he probably would have laughed, because Derek trying to growl with Stiles’s vocal chords is hilarious. It sounds like a wimpier version of Christian Bale’s Batman.
“Dude,” he says, and Scott looks—if possible—even more freaked out.
“I’m not going,” Derek says, crossing his (technically Stiles’) arms. He’s moving slowly, almost gingerly, in Stiles’s body, like he’s afraid he’s going to break a finger just by lifting it.