So you dont get confused heres some family history:
Harry and Ginny had Leonora Potter

Albert(Wizard) and Leonora had Jason Kent

Neville and Lavender had Greg Longbottom

Greg and Alexa(muggle) had Victor Longbottom

Marcus(wizard) and Hermione had Clark Roberts

Clark and Jessica(witch) had Karla Roberts

Ron+LunaStanley Weasley Stanley+Eva(muggle)Macy Weasley

"Jason, it's great to see you again" said Victor Longbottom as he looked up from his quidditch magazine. He had his fathers looks, but his grabdfathers teeth. Built compared to the scrawny Neville most remembered at Hogwarts.

"Great to see you as well, Vic" Jason said putting his baggage above their heads. He took a seat shakeing out his black hair that came from the Potter side of his family. Many people had said he took over the looks of his grad father which skipped a generation since his mother looked more like the Weasley side of his family.

Karla and Macy came on talking about their summers and come into the compartment where Jason and Victor sat.

"Hey boys" Karla said sitting next to Jason. Her hair as red as her gradmothers but as straight as her mothers. Jason and Karla had been very close friends, they dated in the fourth year but thought it to awkward so ended it to stay wonderful friends.

Macy sat beside Victor quietly pushing up her glasses. Macy was much like her father, taking traits from her grand parents. Her face was her mothers though, she was very beautiful but hid it with her glasses, messy hair, and her books. Karla did her best to get Macy more open minded to be a teenager but it hadnt worked yet.

"Oh my gosh, have you guys seen the new girl? She was home schooled or something. She showed up alone at the platform, i wonder who she is" exclaimed Karla looking out the window.

"Is she hot?" asked Victor looking up.

Karla looked at him "what is wrong with you males? all you care about is if she is hot or has a big bosom" she crossed her arms.

Victor sat up "Blimely she must be an angel how your acting, Karla" Karla's response was getting up and smacking him over the head. Every one laughed at Karla as she sat down pleased with herself. Out the window Hogwarts lights shined for the on coming students bringing joy to all who saw it.

Meanwhile a girl sat alone looking out the window quietly watching as the train drew closer to Hogwarts. She pulled her hood farther over her head taking in the cloaks warmth. This was to be her home for her final year of school, just so she may complete the task her father had planned for her.

A few days after coming to Hogwarts
Jason walked down the hallway towards the Dueling Club meeting after recieveing an owl that there was planned a competion and since he won last year they wanted him to be the main competion. When there he took off his cloak, and hug it up. Victor stood on the stage coaxing people to sign up to face off with Jason.

"Pay a little money into the jar. Winner gets all. Is there anyone here brave enough to face him" Victor yelled in his annoying announcers voice. Some people signed up. One by one lost to Jason. Soon no one wanted to face him.

Victor looked at the half full jar. "Anyone else?" he asked hopeing to see it full.

A figure broke through the crowd in a dark hooded cloak "I'll take him on" said the feminine voice inside the cloak.

Jason looked at the figure "who are you?"

The girl removed her hood revealing a beautiful face "My name is Kaylee Riddle, grand daughter of Tom Riddle or as some call him...Voldemort"