A game after my own heart, sexy adventure! Definitely want to see this continued. I had zero issues with the commands, but I have some experience here.
Two suggestions. First, in terms of play I'd like to see more things you can interact with and characters that acknowledge what you've done, which are both strengths of Inform that justify it instead of Twine. It would also be nice if you had more aliases for the characters. The reading succubus was described as draconic, for example, but 'dragon' and 'dragongirl' don't work.