The voice and the necklace don't escape her notice, though, and she looks a little embarrassed when she puts it together. She's never met any of the Rarities (yet), but it's enough to make it clear that it's not who she thought it was.]
Oh... sorry. I think I mistook you for someone else.
[With a sheepish smile, she adds:]
She looks just like you now! Really tall and pretty!
[Visual]
[The girl on the other end of the scroll looks like a smaller, younger version of what Rarity has turned into. And unlike some ponies, she seems perfectly at home on two legs.
The voice and the necklace don't escape her notice, though, and she looks a little embarrassed when she puts it together. She's never met any of the Rarities (yet), but it's enough to make it clear that it's not who she thought it was.]
Oh... sorry. I think I mistook you for someone else.
[With a sheepish smile, she adds:]
She looks just like you now! Really tall and pretty!