Granddaughter got such incest from her grandfather that she was surprised by the size of his penis

The granddaughter always thought her grandfather was a senile old man, but after spending one weekend with him she realized that she was very much mistaken. The kind old man gave the young slut incest, impressing her with the size of his penis and his ability to fuck. At the end he profusely pooped on the breasts of the cutie, who was quietly pampered by the intercourse.