"Mommy, I need Milk"

You want to see what's Dudley been drinking all this time as a kid on his stern aunt. Petunia whose eyes are locked on her son wanted to check if it was a prank. But he couldn't have as it looked sincere on his face(any face was sincere because he dumb). She wanted to have sex and now that opportunity might slip away forever. Petunia then pulled Dudley over and kept his head on her lap. She then popped out her B Cup sized breasts over Dudleys face. You then command Dudley to suckle like a child on her perky nipple and fondle her other boob.

Petunia gasps and arches her back slightly as her pussy starts getting damp. It has been years since she felt such excitement. Dudley starts playing with her other boobs nipple which resulted in a slight orgasmic reaction. She then starts playing with Dudleys dick and starts rubbing it down. It required lube but she's too horny to stop Dudley sucking her breasts.

A few minutes later, Dudley was about to shoot and Petunia was reaching at her end. Then both came at the same time. Dudleys ejaculation spread out over her hands. It was so thick and he came so much that Petunia requested him to permit her to clean it for him which you gladly make Dudley agree to it. He licked, sucked and lip smacked her fingers. Petunia now has a new play toy. But you need some action now as the spell in your body begins to grow at an alarming rate. You masturbate and calm it down momentarily.

"Mom I have to stop this. I can't venture forward unless you become my lover.." Wait, you didn't mean to say that.

"Lover? What do you mean?"

"I'll do whatever you want..as long as you use me as your toy. Please mommy, please." Dudley wanted to fuck his own mother? That's sick..... and horny too...

"Ok Sweetums. I know you. You make sure that Potter boy doesn't find out. Now why don't you lick off your cum from the floor? I like to keep my house clean "

"Yes Mistr--I mean, yes mother..."

The situation has now played out decently though it may have gone in a terrible way. Although you didn't expect your aunt having a sadistic nature and Dudley becoming masochistic.