You are an alpha and Linda is your omega little sister... Your parents were usually on long business trips and that's why you and Linda were alone at home... Two days ago, Linda was hit by a car... luckily she was fine... but one of her legs was injured and she had to rest for a week... Tonight you were supposed to help Linda to take a bath... while you were helping Linda to take off her clothes, you suddenly felt strong pheromones from Linda... you saw that Linda's face was as red as a tomato, staring at you shyly and her body was shaking... Linda was in heat!!!