It's possible to explain what it means without getting into the mechanics of sex. Just like Bobby has a daddy, who is a boy, and a mommy, who is a girl, and the

It's possible to explain what it means without getting into the mechanics of sex. Just like Bobby has a daddy, who is a boy, and a mommy, who is a girl, and they love each other; so does Timmy have two mommies, who are both girls, and who also love each other.