Snape's Daughter - (Draco Malfoy)

I look at Harry's arm "wait, your cut" I say "what about it?" I pull up my sleeve and he gasp "w-what?" he asks shocked "I don't know what was happening. My shoulder really hurt, then I felt something cutting into my arm, and this cut appeared. H-how can we have the same cut?" I ask a little confused. I look at Harry and he looks has confused has me.