Imagine this. Derek. The grumpiest mermaid to ever grump the 7 seas. His tail is the colour of his magically hazel eyes, and he has these starfish and kelp thingies as jewelry around his arms and neck. And stiles the happiest teen to ever swim bc wow LOOK! Thats how the sea looks like?! Actual sea, not a photo! I always dreamed of thiiiiis-ohmygod its cold wow! Water!!! And mermaid mates and stiles maybe gets caught under water? And then kissing under water to help stiles breathe and save him!!