The 4th installment in this series involves an incubus, which gives new meaning to the whole fuck or die curse. No matter how much they go at it, they can't get enough.
This actually starts out slower, with Stiles having a new girlfriend, werewolf this time, and Derek pushing down the feels, he's not sure what feels, he tries not to think about it.
And then the incubus happens, and lots of sex. We're getting close now, to the last, HEA giving installment, hopefully it gives me everything I want for these guys.