Если падчерицу нет дома и приходит ее бойфренд, то мачеха воспользовалась

The girl had called her boyfriend at home, when the boyfriend reached home, the girl had gone out for some work for a while, but her stepmother was at home, as soon as the stepmother saw her daughter's boyfriend, she took him inside the house and did everything with the stepdaughter's boyfriend before the stepdaughter arrived.