Good question! There are going to be opportunities where you can choose for the main character to top or bottom in a scene—most of what's been written so far is a lot of the bottom content (primarily because the characters you encounter for those sections are much more dominant), but there are going to be dominant and top scenes in the future! For example, with Levi's route, you'll have the chance to hypnotize him and boss him around and top him, and the content planned for after going to the coffee shop first will have more routes for main character dominant material.
No worries, thanks for asking! Yes, there are routes where MC tops; some of them are dedicated "top only" routes, some of them will be framed in a "what would you like to do" manner to give you options, and some of them will automatically direct you to a "MC topping" interaction based on previous choices you have made. While most of the content that's been produced/published so far has been pretty bottom-heavy, as we develop more of this project there will be more of a (hopefully) even balance between bottom and top content.