Pretty simple, you put in any name you think fits the style, meaning, etc. of the other twin, and I pick first place (3 points), second place (2 points), and third place (1 point). Part 2 will come later if there's enough interest in this one - giving MNs to the first place picks.
1.
Arthur and _______ (sister)
2.
Lucy and _______ (brother)
3.
Caitlin and _______ (sister)
4.
Callum and _______ (brother)
5.
Raphael and _______ (brother)
6.
Orla and _______ (sister)
7.
Saoirse and _______ (brother)
8.
Tatiana and _______ (sister)
9.
Ewan and _______ (sister)
10.
Eugenie and _______ (sister)
11.
Sandrine and _______ (brother)
12.
Matthias and _______ (sister)
13.
Hugo and _______ (brother)
14.
Lachlan and _______ (sister)
15.
Lola and _______ (sister)
Also, I think most of the genders are pretty non-unisex, but ask if you need clarification.
"The secret garden is always open now. Open, and awake, and alive. If you look the right way, you can see that the whole world is a garden."