I have been putting the pup on two of the other teats that look pretty full. The pup most definetely preferrs two of the other one's, but if I bring the pup to one of the other teats when she is hungry she will eventually latch on! It's so cute how she uses her paws to knead over the sides of the teat to stimulate getting more milk out. It's amazing how these little guys know what to do to survive!