I really like to come up with names a like so this is a completely made up/hypothetical situation.
What would you name the third sister in the sibset [name_f]Fern[/name_f] and [name_u]River[/name_u] also what middle names would you use for [name_f]Fern[/name_f] and [name_u]River[/name_u] (both are girls)
[name_f]Fern[/name_f] is one of my favorite names!! Due to that, I’d personally use [name_f]Fern[/name_f] [name_f]Elizabeth[/name_f] and [name_u]River[/name_u] [name_f]Louisa[/name_f], which squeezes in the other names I’d really want to use.
A third sister I think would be [name_u]Lark[/name_u] [name_f]Alice[/name_f]!
[name_f]Fern[/name_f] , [name_u]River[/name_u] and
I feel like they need a rock/ stone name so
[name_f]Opal[/name_f]
[name_u]Ruby[/name_u]
[name_f]Emerald[/name_f]
[name_f]Amber[/name_f]
[name_f]Pearl[/name_f]
[name_f]Sapphire[/name_f]
[name_f]Peridot[/name_f]
[name_u]Jade[/name_u]
If I had a little [name_f]Fern[/name_f] and [name_u]River[/name_u] they’d be [name_f]Fern[/name_f] [name_f]Belladonna[/name_f] and [name_u]River[/name_u] [name_f]Maristela[/name_f], I’d name another sister either [name_u]Dove[/name_u] [name_f]Sabina[/name_f] or [name_u]Jay[/name_u] [name_f]Elektra[/name_f]!
[name_f]My[/name_f] immediate thought was [name_f]Fern[/name_f], [name_u]River[/name_u] & [name_f]Opal[/name_f].
I think [name_f]Opal[/name_f] would be gorgeous & for a brother [name_u]Onyx[/name_u] just for curiosity purposes as of course your asking for a sister name!
For the third girl, maybe…
[name_u]Jade[/name_u]
[name_u]Willow[/name_u]
[name_u]Sage[/name_u]
[name_u]Hazel[/name_u]
[name_f]Ivy[/name_f]
[name_f]Coral[/name_f]
[name_u]River[/name_u] and [name_f]Fern[/name_f] make such amazing sibsets! I’d pick something nature-themed and also 1-2 syllables for the third. For middles, my first thought is [name_u]River[/name_u] [name_u]Louise[/name_u] and [name_f]Fern[/name_f] [name_f]Amelia[/name_f].
This combo may be too much but I thought it was adorable… [name_f]Marilla[/name_f] and [name_u]River[/name_u] have water meanings, [name_f]Fern[/name_f] and [name_f]Rosalind[/name_f] have plant meanings, and [name_f]Mercy[/name_f] and [name_f]Felicity[/name_f] are virtues.
I like [name_u]River[/name_u], [name_f]Fern[/name_f] and [name_u]Story[/name_u].
Maybe…
[name_u]River[/name_u] [name_f]Matilda[/name_f], [name_f]Fern[/name_f] [name_f]Cordelia[/name_f] & [name_u]Story[/name_u] [name_f]Eloise[/name_f].