What straight girl would stare at a picture of another girl?
I'm sorry, but if I got a text that had a picture of a naked girl, I'd immediately delete it without looking at any details of her including the face. I don't want to see that. Of course I know people, especially us girls, like to compare ourselves to our peers and those in the media, but to stare at naked pictures? Gross.
If someone forwarded me someone's naked pic, I'd text back, "What in the flying f&*k!? Why would you send me that?" And if they texted back something like "Didn't you see who it was???" I'd text, "I don't give a sh*(. I don't need to see that. Don't make me slap you with a spatula."