Mother relaxes thanks to son, What can be said about my mother? Posted in Incest storiesTagged sex-storys, big ass, big butt, big-butt-mom-sex-stories. My son answered, "yea Mom, does he have a big cock like mine? know if it's incest, but you shouldn't be masturbating in front of your mother. . If one were to believe what's on the Internet with all the mom/son porn videos and stories like this .. I question if it is real story, especially mothers fucking their sons, and they all.