beta
I'm betting a reincarnation story because the snake is a dragon, they were lovers in a past life, the cow dude is the one that originally owned the ring, and when he died he gave it to the snake dude.
"Milk fetish" is definitely the snake dude, he's prolly just really into people who remind him of his cow
EDIT: in my defence, I thought it was going to be a longer story (づ￣ ³￣)づ