His sister’s huge ass is a delight on all fours
She thinks that she may have bullying problems at school, because nowadays people are classified and the younger they are, the more cruel they are. He then infers that she has self-esteem problems due to her weight, something he cannot understand because he is from a different generation. The only thing she is clear about is that her sister’s huge ass is a delight on all fours and she is very surprised that the other kids don’t want to fuck her. However, he is willing to put his cock in her so that she grows with a healthy and very satisfied pussy in this very hard stage of her life.