Are there any girl twins in greek mythology?

Question

I have heard myths about girl/boy twins like Apollo and Artemis and boy/boy twins like Castor and Pollux, but what about girl/girl twins? I can't seem to find any.

Answer 1

Don't think there is. Found this though, but doesn't seem like any cultures listed have girl/girl twins. http://www.sfu.ca/archaeology/museum/ndi...

Answer 2

Technically speaking the furies might be considered twins:

Alecto, Megaera, and Tisiphone

They were born from the blood of Ouranous hence at the same time.

Answer 3

Well, technically, Castor and Clytemnestra were twins and Pollux and Helen were twins that were born out of two eggs (Leda, the swan, some other guy...it was a little weird there.)

C & C were the mortal twins, and P & H were the immortal twins.  

But I guess you could say that they were quadruplets since they were all born (laid?) at the same time.

Zeus as a swan...what a freak.

I don't think there were any female twins unless the ones above count.