*I'm an Hetalia fan, sue me*

This idea was heavily inspired on a dream I had in 2012 where Spain was slowly turning into a Bicha (a human faced bull creature from pre-roman times), but was completely unaware of the changes due to the nature of the transformation

To him it was a perfectly normal day, even when he could no longer fit in the kitchen or broke the chair with his new added weight. Romano on the other hand was pretty freaked out by the event