You’re sitting down doing your homework on mommy’s bedroom floor when I walk in and ask you for your help. Yep, clogged ducts again! I need you to help suck my tits so they will stop aching. I know you’ll be a good boy and help me won’t you?
We can both do it, let's both suck on my nipples until mommy feels better. That’s so good but wait, stop that!
You promised if I let you suck on my tits and play with them that you wouldn’t put your cock inside of me! You are so bad! "Get your cock out of your mother right now!" I say, as I ride it more and more passionately. I ride until I’m about to cum, sucking both tits feverishly.
I keep resisting, but I’m so close. Right before I cum on your cock I say “fuck it!” “you can fuck your mommy whenever you want!!” As we continue sucking mommy’s huge nipples.
The final 5 minutes are some extra scenes and angles of mommy's big tits bouncing. Varying closeups, and slow motion. Just for fun!