Anthropomorphic snakes. Long snake tails, no legs. Strong arms, scale color ranges between orange and white. Generally large bust. Any time they say an "s", they hiss. So instead of "this", it would be "thisss."
A clan of anthro vipers living in the jungle, forest, or desert. Will transform any humans they see into vipers like themselves. All are female. Will let the transformed humans go if they are adamant about leaving. But will not turn them back.
They transform humans by biting them. Enjoy!