A baby brother?

Last night Herbie and I were talking. Herbie, where is your baby brother? In mommy's tummy he says as he points to my big belly. Are you ready for your brother to come out? Not a baby, I want "Twinky". Who is "Twinky"? "Twinky" the dog mommy, like Dee Dee's dog. I want Twinky the dog. So, you don't want a baby brother to come out? No, I want "Twinky".