It's that time in the twins' lives when the Tooth Fairy makes regular visits. Interestingly, the littlest girl, "Baby B," the one who used to be about 2 weeks developmentally behind "Baby A," lost her tooth first. Reaching the milestone marker first no longer is predictable, as the training wheels also came off Baby B's bike while the other's remain firmly attached to the frame.
When the latest tooth loser was expressing her fear of pain and the aversion to a little blood, the experienced one stepped in and offered her support, advice, and encouragement. It was heartwarming, and really showed how they care deeply for one another and can rely on one another. It's a little different from having a big sister. This twin bond seems to be more intense, because the experiences are so similar with very little time separating them. They are so lucky!