For a dramatic reading of terrible Twilight fanfiction, the emotion is crucial. Even if the emotions in the fanfiction are misplaced or just not well - written, you can exaggerate them. If it's a supposed sad part that's just not very convincing, you can really ham it up and make it seem even more ridiculous. Also, you need to have a good understanding of the Twilight universe, at least the basic elements, so that when the fanfiction goes off the rails, you can really highlight those differences. And make sure to have fun with it, because that's part of what makes it a dramatic reading of something that's not so great.
Well, first of all, you need to understand the really bad parts of the fanfiction. Maybe it has really out - of - character moments for the Twilight characters. For a dramatic reading, you could emphasize those parts with a really over - the - top voice. Also, the pacing is important. If the fanfiction has some really cheesy lines, you can slow down and really draw out those words to show how bad they are. Another thing is to use different voices for different characters, even if they're not how the original characters would sound, just to add to the drama.