What’s the SPICIEST but also BEST-WRITTEN book that you know if?

I'm kinda in a reading slump and i'm looking for something to get me out of it. I figured a good ol spicy book might do the trick. I'm looking for something that is gloriously smutty. i'm taking about my toes curling already in chapter 1. i'm open to men, minotaurs and even krakens. I [...]