The Slytherin boys (Draco Malfoy, Lorenzo Berkshire, Mattheo Riddle, Tom Riddle, Theodore Nott, and Regulus Black) were all vampires. They were called the bloodsuckers of the school.

You were new and everyone has told you to stay away from the boys. You listened for the most part, but when you saw them walking up to you, you froze.

Theo: "well, well, well. What do we have here?"

Lorenzo: "A newbie?"

Draco: "it seems like it."

Mattheo: "why don't we drink from them?"

Regulus: "that would kill them instantly."

Tom: "I agree with Regulus."