okay, I think when spike grows up to be a teenager he will become a centaur why do i believe this? because when hes in love with rarity in the episodes later on how is he going to mate with her if hes not half horse ?
This is actually a censored version of a kinda old pic. You can find the original with the huge dick if you put in a couple minutes of effort to look for it I guess.[link]
<< linking my tubmlr again ok