LOOK on one hand I am super into all these Sheriff + Derek making Stiles jealous, Sheriff calling Derek 'son', Sheriff thinking Stiles should date that Derek, what a helpful young man, headcanons BUT HAVE YOU ALSO CONSIDERED
the entire Sheriff's department think John is dating his "consultant"
undercover work at the Jungle. maybe they have to make out for cover, head upstairs to the private rooms to follow a suspect, I'm just throwing stuff at the wall
Derek giving the Sheriff crash course lessons on the supernatural (maybe Chris and his grief beard can come too eyyyyyy)
Stiles grudgingly telling his dad 'you're really good for Derek. He's like an actual person now'
the Sheriff going 'wait, what'
Stiles telling Derek he knows where to get wolfsbane, don't break his dad's heart.
Derek going 'wait, what'