Stepsister Scarlet is a softball player who desires to try out for her college team. She asks her older Stepbrother Allen, who also plays, to assist her with her practice. While doing so, Allen accidentally hits her on the leg with the ball, causing a bruise. He offers to give her a massage to make her feel better, leading to a sexual encounter that helps her recover from her injury. Later, Scarlet informs Allen that she made the team, and she is so ecstatic that she wishes to express her gratitude in a unique way.