EDIT: The response that followed caused quite a lot of discussion because it contained a misconception about submission and bottoming. That wasn't what I intended when writing it but, regardless, the implication was there. I have edited this response.
Hi, eli.
When we started Minotaur Hotel the plan was for Asterion to only be a bottom, as that's what fit his character and the story we wanted to tell. That's just his sexual preference. In due time the story will explore this.
We might have a scene where he can top, but that would probably be near the end of the game.
I understand that for a lot of people this may not be the answer they want, but trust that we're trying to tell this story in the best, most cohesive way we can.