[name_f]Demi[/name_f] feels like the most obvious option to me!
[name_m]Other[/name_m] ideas…
[name_f]Ria[/name_f]
[name_f]Dia[/name_f]
[name_f]Dede[/name_f]
[name_f]Tria[/name_f]
[name_f]Emi[/name_f]
[name_f]Mittie[/name_f]
[name_m]Dima[/name_m]