"A few months after the incident and the end of Mystery Inc, Velma and Daphne are completely overwhelmed by their insanely powerful and almost constant sexual urges. Since they went back to college, they fucked and fucked over and over, whenever they could, but they simply can't be satisfied by normal dudes' average cocks and are each time left craving for more. They miss the massive cocks the monsters who raped them had. It's in this context you arrive in the class mid-semester, a week before spring break."