Sibling Rivalry (Futa!Sisters x Fem!Reader)

Y/n's mother died in a car accident when she just 8 years old leaving her and her father all alone.
Y/n's father was devastated and tried his best to provide for him and his daughter while dealing with the death of his beloved wife.
After years of grieving Y/n's father finally found someone else to be with! but Y/n isn't to sure about this woman.
This woman is rich, beautiful and kind...but that's the only thing! she also has 6 other daughters!
They all seem normal enough at first...but then Y/n noticed they all acted strange around her.
She would always caught them staring at her with a odd look in their eyes before turning away but she would always shiver whenever one of them looked at her...it was...lustful..almost predatory...
Like at lion stalking it's prey...waiting for the right time strike and sink it's fangs into her flesh...

Will Y/n survive her new life surrounded by women with an uncontrollable desire for her or will she be devoured by these hungry lionesses?

Only time shall tell~