by MrSkin999
You should follow this up with how she had him when she was only 17, and include more intimate details. Mom doesn't want him getting other girls pregnant, but after letting him cum in her pussy all weekend, she's the one now carrying his baby. And how he got her pregnant several times over the next few years. And when the kids are old enough to learn more about sex, how he and his mom/wife teach them everything there is to know.
Every mother should be required to allow their son(s) to fuck them! And if the son (accidentally) gets his mother pregnant, so be it!