Are they the folks whose older girl is [name_f]Ottilie[/name_f]? I just love that name!
I like [name_f]Lavender[/name_f] for a sister. I also thought of [name_f]Freya[/name_f] (any spelling), [name_f]Wilhelmina[/name_f], [name_f]Rosemary[/name_f], [name_u]Fern[/name_u], and [name_f]Opal[/name_f] off the top of my head.
[name_f]Ottilie[/name_f] [name_u]Rue[/name_u] feels [name_f]British[/name_f], quirky, feminine, vintage but still modern and cute with the middle. I personally love it.
[name_f]Aurelia[/name_f] is my top choice for them as it has the same flair as [name_f]Ottilie[/name_f].
Other potential ideas:
[name_f]Elodie[/name_f]
[name_f]Adelaide[/name_f]
[name_f]Marigold[/name_f] (Goldie)
[name_u]Juniper[/name_u]
[name_f]Primrose[/name_f]
Middles I could see them doing [name_u]Wren[/name_u], [name_u]Kit[/name_u], [name_f]Mae[/name_f] … something short and sweet.
[name_f]My[/name_f] first thought when they announced was [name_f]Clementine[/name_f] — it has the same trendy, Telegraph feel as [name_f]Ottilie[/name_f] and has plenty of cute nickname options. How sweet would sisters [name_u]Ottie[/name_u] and [name_u]Clemmie[/name_u] be??
It also has the added bonus of being [name_u]Christmas[/name_u] related, as she’s due in [name_u]December[/name_u] and [name_u]Zoe[/name_u] is obsessed with all things [name_u]Christmas[/name_u]!