"Draco, I know you are in love with that, mudblood, girl for whatever reason, but you cannot be with her!"
"Why Father? She is the love of my life and I deserve to be happy after all the crap you've put me through!"
"She is unfit to acquire the Malfoy name. And she is also…"
"She's also what, Father?"
"She's also… Ugh! I didn't think I'd have to tell you this! It's shameful!"
"What is it?"
"That mudblood granger, isn't actually a mudblood at all. She is your sister!"
"NO! That's impossible!"
"As hard to believe as it is, Draco, Hermione is indeed your sister."
"How is this happening?"
"You see, Narcissa didn't want a baby girl, for fear she would grow up prettier than her, so she gave her away to be raised by muggles. It appears she was afraid of nothing, I see now."
"How dare you! How dare you insult her!"
"But wait, Draco, I am not finished, for there is another twist. You see, Draco, Hermione is-"
"-I'm not sure if I want to know!"
"YOUR TWIN!"
"Now that, is a load of codswallop! We look nothing alike!"
"Genetics are a mysterious thing, I cannot deny that, but she is your twin, Draco, and you must accept that."
"But… But… I shagged her!"