I did the same thing for my brother 2 Christmases ago, he's a huge pokemon fan, I enjoy it , but no where near as much is him. SO I got him X & me Y. I also gave him my 3DS at the time, so for a year He kept making me fight him in the online mode...........
Lol literally I got Pokemon Black when I was in 8th grade. I have a Black Dsi that used to be my little brothers until he got a 3ds. He only gave me it cause he has Omega Ruby. ._. But I have no 3ds so...