Sentient Serpent and Serpent Servant (Patreon)

Viviana Smythe used to be the owner of a pet boa constrictor, but a freak accident involving gamma radiation and a Jungle Book DVD gave her pet snake vast intelligence, the ability to change its size at will, and a powerful hypnotic gaze.  The snake now calls itself the "Sentient Serpent", and Viviana became the snake's first "Serpent Servant". Hopefully Aella can avoid becoming the snake's next slave!

Okay, so that's a ridiculous off-the-cuff origin story for the Sentient Serpent and the Serpent Servant, but unless you've got a better one we'll just go with it for now. ;)