I think that you'll enjoy it twice as much!  At first you'll probably think " what have I done?" but that won't last too long.  Those little puppy kisses will just melt your heart, and Cassie is at that age where she just might think like a mom and take her under her wing.  I have 4 and I still take them with us when we go.  Sometimes all at once and sometime 2 at a time, taking turns.  If you love one, you'll love 2 twice as much 

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