Petunia is mine.

Ending for The Dursleys

As hours and days passed by, she slowly became attached to you and your "milk".

For dinner, as it was her last supper as Petunia you confess that you were the mastermind, but since Petunia drank a lot from you, she just shrugged it off saying that, "It was worth it" with a smile on her face. You then proceeded to take her to their master bedroom and made Petunia a ****, just for you. You begin by kissing her and grabbing her ass.

Petunia moaned through the kiss and grabbed your cock and began to strip. You carry her to the bed where you kept your giant rod in her pussy and walked across till you reach the bed. Petunia couldn't believe the size of your cock and started humping like there was no tomorrow.

"Fuck me, Harry, Fuck me harder. Make me your bitch."

You then fuck her faster and faster as her moans and the butt-slamming sounds filled up all through the night. You sealed the deal by shooting inside her and thus you have Petunia in your harem without Dudley's and Vernon's influence...

Days later, the house began to change. It was spotless of course, but the difference was all the photos were replaced. It was filled with pictures of you; you and Petunia; you, Petunia and Aunt Marge(Now how did that happen). Petunia changed as well. She walks around naked in the house and cooks with nothing but an apron. Occasionally she throws orgy parties where you corrupt all the other muggles in the vicinity. Aunt Marge collects your sperm and distributes everywhere in forms of milkshakes and cookies. Muggle women are now at your fingertips(or the tip of your cock to be precise).

"Hey Aunt Petunia, I got a surprise."

"Yes Master Harry, on my way." She comes in naked and then falls on your feet and kisses it. While rising she sniffed your crotch and looked up.

"What is it, Master?"

"For your services, I give you this collar, announcing that you are part of my harem even in the Wizarding World." and you tie up the collar on her neck which has a lease.

Petunia eyes filled with tears and said, "Thank you, Master. I am forever your bitch." and you begin dog-fucking her like a **** she should have been.