The Serpent's Secret Warmth
Read the storyInsanity is making a potion and messes up, turning himself into a snake demon with a human upper half and the tail of a snake. Now cold blooded, he is freezing. Lucifer offers him a glass of wine and a blanket while they hang out but when that isn’t enough, Lucifer asks if he needs body heat. Insanity takes the offer and cuddles up to his best friend that he’s been secretly in love with for centuries.