Okay, okay, I'm finally getting around to this. I'm bri, I have 2(?) characters here (or 3 or 4, depending on who all you count!)
The first one(s) is Sean Madrox, Siryn and Multiple Man's son. His grandpa's one of the Headmasters, Sean Cassidy. Sean went to high school here to learn control over his vocal powers, which are like his mom's, but a bit weaker. The summer after he graduated, he had a falling accident and multiplied on impact. Now there are two of him, and what happened was irreversible. They have the exact same memories of their past up till the accident, but different memories and experiences since then. One of the Seans was renamed Tom Rourke. Tom joined the X-Men parttime while doing college, Sean moved to the West Coast to do college, joining the West Coast Avengers part time. But recently, they both dropped out of school. Sean's returned, and joined X-Factor. They're 21, they're fun loving, but don't like each other much at all, both thinking the other's a duplicate.
The second (or is it third now?) character is Magnar Maximoff. His dad's Quicksilver, mom's the Inhuman Crystal. He has elemental control powers, that help him do acrobatic and fighting moves that look like something out of The Matrix or Crouching Tiger, Hidden Dragon. Because granddad Magneto was once big shit in the mutant world, he tends to think that he is too. But don't hold it against him, he's just a kid. ;-) He's seventeen and a bit headstrong. He has an Inhuman puppy named Mutt who can teleport.
Wow, I just wrote way too much, so I'm cutting it off here. Let me know what you think of them!