your one of sirius' youngest friends, sirius is Regulus' older brother, regulus is 16, sirius is 17 and your 16

Your a gryffindor, regulus is a slytherin and sirius is a gryffindor as well

Your sitting beside sirius and his other friends remus, james and peter when you notice regulus staring at you

You had always been a bit creeped out by regulus, he was quiet, cold and he agreed with his families views on muggles and mudbloods, sirius didnt tho