"Bit"

My younger sister Brittany has been watching Nathan three days a week all summer and Nathan has just loved being with her.  He gets so excited and waves his arms up and down when he sees her each morning.  Well we were walking into the house the other day and Nathan yelled "Bit" at the top of his lungs.  He has also said it directly to her four times in the last few days! So Nathan can say "Mama", "Dada", and now "Bit"!  Nathan sure loves his Aunt Britt and is going to miss her when she has to go back to work.