If they were born right at this second...VivianDaisy and DorothyBella.I'd call them Vivi and Dottie!And no, twin names don't have to start with the same letter.
Cute! I love Vivian, esp. with Vivi as a nn (for some reason), and I've started loving Dorothy lately, too. :) ~Heather~"Why is it that, as a culture, we are more comfortable seeing two men holding guns than holding hands?" - Ernest Gaines