Oh, really Ironic.
My mom is a Hufflepuff, my dad is a muggle, my younger brother is Slytherin, and my older brother is Ravenclaw. My first House-Quiz result was Gryffindor, which meant that we had all five groups in the family. Then I had to retake the quiz because my pottermor account got erased, and it made me Slytherin -_-