For both the twins! On the same day!
You might not be surprised that they got their first teeth the same day, because they're twins. But seriously, this is an incredible coincidence. Sweet Pea and Little Man are fraternal twins, which means they are no closer genetically than they are with CC. What are the odds that teeth would sprout for both of them on the same day?!
For the record, Sweet Pea has both her bottom teeth, and Little Man has his bottom right tooth.
(And naturally, it happened on Saturday, when MJ and I were away. But more on that in another post!)