I don't understand anything grandpa, don't you want to do something else?

His grandfather, a retired university professor, has taken his granddaughter's whore in his house to explain to the dog how he has to solve the exams in class. The girl is one of those girls who just likes the farra. The girl loves to party with her classmates, get drunk and make orgies with them. Knowing that he wasn't going to learn anything where the old man. After a couple of minutes of class, the girl invited the old man to do something more fun Pff! The teenager is so fucking, that she seduced her grandfather and made the pig fuck her without compassion.