Sibling Affairs Episode 1 "I hate my step-mother"

Amanda is only 5 months away from graduating from High School. Its been a struggle living with her step-mother Ayla Pierce, the two of them doesn't get along very well. Her big step-sister Tasha promised Amanda that when she graduates from High School, she can live with her and her boyfriend Tristen. But this one night changes everything, she discovers that her step-mother downstairs fucking her classmate named Ash. He is a guy that Amanda has a crush on and her step-mother is fucking him. How will Amanda handle the situation?