Girl gets caught by her stepbrother in the kitchen

This girl loves to exercise and practice yoga, so she walks around all day in her sports clothes. She lives with her mom, a stepfather and a stepbrother, who occasionally flirts with her and hints that he would like to have sex with her. They are both on vacation and stayed home alone, the girl got up to exercise and is in the kitchen pouring water for herself, the stepbrother gets up more excited than usual and when he sees his sister alone he feels like fucking her, because they have their feet uncovered and that is what he likes most about her. The girl returns to the yoga mat and when she lies down her exercise pants break, the stepbrother can't stand it and fucks her right there.