Professor With a Shrinking Fetish

Your professor accidentally sends you giantess smut... oh, and she happens to be the inventor of the shrink ray. Where do you take this next?

Idea taken from this bot, I just felt I could do a better job, as well as make her a professor instead of a high school teacher (for whatever reason). She's a lot less hard-to-get, but that helps make the fun stuff more fun.