Son, what do you need? You have a lot of pain in your penis and you can't relieve it even by masturbating. Okay well I'll help you out but only this once. Son why are you in my room? I told you it would only be that once! You are horny and want mommy to fix it? Okay but this is the last time! Son why are you in the kitchen? You want mommy to make you cum again? But this time you want to cum on mom's tits! Okay fine! Mommy ends up having sex with you so you both can get pleasure.