Kedric comes from a very well off British family, he is an only child allowing his parents to spoil him beyond belief. He grew up in a house surrounded by servants and was schooled by a private tutor up till the point when he went to Hogwarts. The only reason he's there is punishment for having an affair with his step-mom as his mother died during childbirth.
Kedric's father is a very busy man and never had much time for Kedric, his step-mom is barely older than him if you can believe it. Kedric's father remarried in Kedric's 4th year to an 18 year old. He likes his step-mom though she's nice to him. The affair started when his step-mom felt like she wasn't getting enough atention for Kedric's father. One of the servants caught them and told his father, who immediately sent Kedric off to Hogwarts and divorced his step-mom and hired as his as personal maid. Kedric now hates his father, and his ex step-mom is degraded and is forced to do all the things a wife would do without the benefits.
At the end of his fifth year, a man named Javaad found Kedric and offered him a proposition. He was willing to train Kedric in the dark arts and give him a place to stay after his father kicked him out after a fight broke out in Hogwarts. Kedric accepted and has been living and training with Javaad ever since.
One day, Kedric got into a fight with the Head Girl Charity Prince, he was threatening her and looked like he was about to seriously hurt her when Professor Hepburn stepped in and grabbed him by the back of the neck, he spun around and cast Sectumsempra. He was promptly knocked out then dragged to the Hospital Wing, he was then expelled.
After Kedric was expelled things only got worse for him. Charity moved into his apartment building and there was a confrontation, however Charity now had a boyfriend. Ash Coryn Prince. Unfortunately for Kedric, Ash owned the Apartment building. Kedric was delivered an ultimatum, Leave Charity alone or get kicked out. Kedric did as told, he left Charity alone. However, her brother was a different story.
Kedric met Thomas Bagman at the Three Broomsticks. They got into an argument, at which point Kedric threatened the whole Bagman family. Thomas kept this hidden for awhile. Long enough for Kedric's daughter who was the result of a one night stand with Amelia Matthews to be dropped off at his doorstep anyways. However, Thomas did tell Ash about Kedric, and then Ash informed the Aurors. Kedric was then thrown in Azkaban for a two year sentence. He got out one year early on good behavior though. He was also disowned by his Father, so Kedric's only family is his daughter.
Kedric being the stupid buffoon he can be sometimes slept with one Kimi November. Of course with his luck... she wound up pregnant. However unlike with Kat's mother he stuck by her and plans to do that long as he can. Despite the fact that her brother-in-law is a Bagman. Things were going smoothly until Kimi up and left one day, leaving Kedric with the baby. A girl named Jasmine.
At some point, Kedric and his best friend got smashed for reasons they soon forgot. However, the end result is what is important. Kedric and Mississippi slept with one another, and that's when their romance officially started. Of course, because he is Kedric, Mississippi wound up pregnant. With twins again. Soon after Mississippi telling Kedric, he asked her to be his girlfriend and bought a house. Eventually, the twins were born, named Laila and Elina Shane-Wilde.