Always Too Slow

Peter Maximoff is the fastest mutant alive: he can stop a moving bullet before it leaves the gun, or run halfway around the world and back and barely break a sweat. But no matter how fast he runs, he can't seem to catch up to the one person he REALLY needs to talk to: his dad.

Basically just an X-Men fanfic where Peter finally gets to tell Erik he's his son. Also some one shot stories that take place after that (If you want to skip to just the one shots they start at chapter 6).