Apparently, House Girl is Artist Boy's half sister, but not confirmed yet. Odds are, it's not going to end in a double siscon relationship, with Artist Boy getting with Chicken Girl and House Girl getting with Basket Boy.

Still, if House Girl's parents are Artist Boy's Dad and House Girl's Mom, it might be that Artist Boy's parents are House Girl's Dad and Artist Boy's Mom. Artist Boy's Mom hates House Girl since she is a child from an affair of her husband's, but who knows if Artist Boy's Mom didn't do the same thing? If she didn't, I feel horrible for House Girl's late fake Dad, since he cared for House Girl for so long despite not being the real father. Reminds me of Myself; Yourself in that sense.