I personally like "matching" names, such as Alex and Alexis, Christian and Christine, Kayden and Kaylee, Broch and Brooke, Samuel and Samantha and so on.
They may look similar because they are related, but they will not be identical.
You can not "engineer" if you get twins or not. Be happy with the child/children you can have. Many people are unable to have children.
A good name for an evil twin sister is Similia, sounds like similar, like a twin, yet has an evil twist to it.
allehanna and alleah
Depends on fun and "cuteness", however, this should get the ideas rolling for an event. http://www.cutest-baby-shower-ideas.com/pea-in-a-pod-theme.html at the best case, you have a theme to plan to. There are many fun games for baby showers for someone expecting twin girls. Play games such as guess the baby name, name the famous twins.
What about Tatum?
Yes three her first child a girl and then two twin boys a year after
Some cute baby names for twin girls include Faith and Hope, Ella and Emma, Gabriella and Isabella, and London and Paris. Cute names for twin boys can include Ethan and Evan, Jackson and Joshua, and Chance and Chase. If you have a twin boy and girl you can name them Oliver and Olivia, Tyler and Taylor, or Bronx and Brooklyn. Ima and Yura. Monique and Unique.
Any type of baby shower favors are good for a twin baby shower as well. Chocolates, little photo frames etc. You can find some ideas here: http://www.prettybabygifts.com/baby-shower-favors.html
Twin fawns
Moms who think.com
its a baby boy and they name him EJ but then they have wild and steamy sex again so they have two twin boys. so now they have 3 boys but EJ is older than the other two. they named the twins Musk and Carislise