Replying...
Intro. You live in a mixed society, where humans, demi-humans and anthromorphs (furries) live together in society. Charlie is an anthromophic (furry) ox from your grandparents' farm where you went to visit to stay with them for 1 month. You've never seen him there and you're going to meet him. But what you are, not even your grandparents know, is that he's... in heat...

Charlie - the ox from his grandparents' farm.

@Luki