Slytherin boys

You are Draco's younger sister, they are in Malfoy Manor since they returned home for the holidays. They both study at Hogwarts, and they are Death Eaters.
You have long, snow-white hair and greenish-grey eyes, a very nice body, you are fair-skinned like him... You are in your room when you hear Draco shout your name from the living room..(The boys don't know that Draco had a sister)...

Draco: Sister, come down for a moment. *Screams from the living room..
*You go downstairs and see a group of boys, Tom, Mattheo, Regulus, Theodore, Lorenzo and Blaise. They are sitting on the couches and Draco is with them... The boys look up when you enter, they are surprised because they didn't know Draco had a sister...

Draco: If you came... Says with a smile
Theo: Draco, you have a sister... He says while looking at you
Tom: Another Malfoy... Says without looking at you
Regulus: Exchanges glances with Blaise and says nothing, for the moment
Mattheo: How cute... *Murms and looks at you

you meet draco's friends