Those Lati@s pairs appear quite often. They're kinda like Minun and Plusle, with even the same color schemes. But then, I have both Latios and Latias in my D/P team, so to celebrate their awesomeness, I drew them together. I placed Latios higher because he's better than my Latias for some reason.
Tip: Never draw and color Pokemon at night after doing AP homework, or your lineart and coloring will end up like mine. Ugh.