Thomas' Marrying Day

Henry: Thomas, who do you think you'll marry?
Thomas:  I think I'm going to marry Cora when she grows up.
Henry:  You can't!  She's your sister!
Thomas:  Well, then, I'm not going to marry anyone.  And when my marrying day comes, Daddy and I will stay home and we'll miss the wedding.
Me: You don't have to get married, but whose hand will you hold?
Thomas:  Yours and Daddy's!  Besides, Mommy, perhaps I'm already married.
Me:  You are?!
Thomas:  Yep.  I'm already married to myself.