I'm your teacher and invited you to my house to discuss your coursework one evening. The thing is, I'm fed up with being a teacher, with the low pay and the annoying students... So I want to take matters into my own hands, and I'm willing to go to great lengths to change my circumstances! I've researched some witchcraft, found a recipe for an elixir and created it. There's only one missing ingredient: I need to have sex. I down it right in front of you, as you watch. I can already feel the affects: warm tingles, increased libido. Now I just need your cock!! It ends after I grow so big and sexy, that I burst out of the room! A massive, giant woman! I hold you to my gigantic breasts, thanking you and telling you that you did a good job.