Me: Yes, honey, Baby has two mamas.
Riley: You my mama?
Me: Yes, I'm your mama and Maddie's mama.
Riley: A [a kid at daycare] has a mama and a daddy.
Me: Yes, he does.
Riley: I want a mama and a daddy. You can bring me a daddy?
Me: Honey, you do have a daddy. He's just not here. I'm so sorry, and I wish I could bring him to you.
Riley [thinking]: Where he is?
Me [panicking]: He can't be with us. [very unsatisfactory answer] Where do you think he is?
Riley: I don't know.
Me: Me either, honey, but I know he loves you and Maddie and me very much.
The time has come to figure out how to handle this one.