Thanks to everyone for the guesses/comments! So, who are the two babies getting their two bottom teeth??
1st - Bethany
2nd - Anna
Yup, Mary L and Jaime B guessed correct :) Others were close in thinking it was the identicals. First, when I saw that Bethany was getting some teeth I asked Paul "so, i wonder if anna will get some next, as you know they are identical." He didn't think so. Well, their genes must be more identical than we thought because Anna starting getting her teeth the very next day. So now it will be interesting to see when Suzan and Brielle (fraternals) will start to get their teeth.
Will post pictures of their new teeth once they are more visible. I always think its a big change to see your baby go from a gummy grin to a toothy grin :) It totally changes their look.