Ben is a Slytherin. Perhaps so much of a Slytherin that the hat just took one look at him and said Slytherin.
...oh is this a meme?
Apparently
Huh.
Or yes because I can't give an affirmative answer
...I have no idea where Desco would end up.
The Desco Haus
Not that I'm familiar with her but I feel that she would create her own house