This is excatly what ti says it is. Got s story that has: A) Dudley as a magic user or B) Dudley has a child that can use magic ? Then leave me the link to them. WIPs are ok ONLY if they have 5 chapthers or 7,000 words (what ever they hit first).
#: Great story
##: Exelent story!
Dudley has magic
Dudley is a muggle/squib born
Magical Relations: WIP AU First Year onward: Harry's relatives were shocked when the Hogwarts letters came. Not because Harry got into Hogwarts. They had expected that. But Dudley, on the other hand....That had been a surprise. Currently in 3rd year.#
Dangerverse: Long serries of stories, Dudley is in the story from "Living without Danger" onwards, but you need to read the story before it, "Living with Danger" to understand the Dudley related years ##
Dudley is a half-blood
Petunia Takes Charge: AU story…Harry thought he knew everything about his Aunt Petunia but he was wrong. Harry comes home after his first year at Hogwarts to find that things have changed at the Dursley’s or more importantly his Aunt Petunia has changed. (Sequels: Return of the Heirs and A New Hogwarts WIP)
Dudley has magical children
Dudley's child is a half-blood
Dudley's child is a muggle/squib born
Lessons for Life: Eight years after Hogwarts, Harry recieves a letter from Dudley. What does he want? (Sequel: Letters From Home WIP that looks abandoned).

Comments
Sequel: Three Steps Back
Albus/Scorpius, PG-13, novel-length. Summary: No matter how well prepared you think you are, life can always surprise you.
Dudley has a magical child in this one.
http://dalmatica-d.livejournal.com/1