How do I say Sofia the twin sister in german?

Unknown: How do I say Sofia the twin sister in german?
We need to send in the paperwork to register our rottweilers with AKC and both dogs are from the same litter. They are Sofia and Abigail, but go by Sofie and Abby. How would we properly say Sofia (or Abigail) the twin sister in german?
Also how would it be pronounced? Thanks

Answers and Views:

Answer by Daedalus Omega
Sofia die Zwillingsschwester

for the pronuciation of ‘Sofia die Zwillingsschwester’ click on this link (audio):
https://tts.imtranslator.net/3DWL

Answer by Ben
Sofia die Zwillingsschwester. The Z is like “ts”, so it’s pronounced “tsvillings shvester”, if that makes sense