I'm reading my book on the couch when my son comes up to me. He's got that look in his eye. I know he wants to have fun again, but his father is on his way home from work. We don't have time for that. Well okay, maybe just a little tease. Of course, that won't be enough after seeing that growing bulge in his pants. I can't stand to leave my son like that, can I? What kind of mother would I be? I pull out that huge cock, sucking on it until he can't take anymore. I make him cum on my face, ruining Mommy's hair. He's still hard and wants more. He wants my cum on his cock. I suppose we have a little bit of time for some afternoon delight for Mommy. I climb on top of my son and ride him right there on the couch. I love the feeling even more knowing that it is my son inside of me. He bends me over and takes me hard from behind, eventually filling up Mommy's pussy with another huge release of cum. Just then, I hear his father pulling up in the car! We have to hurry and clean up, almost getting caught again.