Grandpa stabbed the craving of sex a young couple in the entrance

My friend and I met a young girl with long hair, who was tuned to sex, but there was no particular to fuck with her where and we decided to fuck the beauty in the front door. We climbed the floor and fucked her in two members on the flight and the girl received a high from this, but then my grandfather began to go down the stairs, who stabbed us with a craving for sex.