Sorry, I obviously cannot answer your question.
I do think girls are likelier to be more at ease with same-sex encounters than men, if only because they've been glorified in the media, and were never seen as thretening to one's gender identity in quite the same way as male homosexuality.
However, I've definitely met girls who said that it was "disgusting" and they could never imagine doing it, etc, etc.
On a somewhat (un)related point, a friend of mine and I were comparing notes, and we decided that in our experience, girls are usually the better kissers. Especially for a first kiss, before you have the opportunity to train each other to your preferences. Would you say this is true?