The first victim

Grabbing and pulling the screaming victim through the door she quickly used another tentacle to cover her prey's mouth. Noting it quickly to be Karyn. As a smile of satisfaction crossed her face she opened her mouth, much more-so than any human possibly could and began to push Karyn in head first as her body began to expand. Making her gain a few feet in height as her stomach began to swell, making her look as if 9 months pregnant. As she began to slither through the empty house she could feel Karyn quickly being digested and changed within her body. Looking around the house she decided to slither into the basement, letting the darkness envelop her as she continued to digest.
As time went on she could feel as if the bulge in her stomach was beginning to push through her abdomen. As she continued to push it through she reached her hands down, gently pulling the egg out of her as she placed it onto the cold cement, commanding it to hatch and grow. As she watched the egg began to rock back and forth, as the egg began to hatch she saw as a young woman emerged, her lower half having been turned to the body of a snake. As commanded the young Lamia began to grow until Karyn had regrown to her normal age, everything below her waist having been changed to the body of a snake.
"How do you feel my child?"
"I feel as if I should have been born this way. Thank you my mistress Echidna, mother of all the creatures of the box of Pandora." Karyn said.
"My child, let us feed as darkness comes."
"Yes, my mother"