Even if she does remember you, so what? You've got an icebreaker already in the can. Unless you freaked her out last time of course!
Actually, I might be tempted myself (I seem to be in a big girl phase) but Ivy says she's 5'11" and a size 16. That's a whole lot of Rosie and possibly bigger than I'd be interested in. However, I note you've also seen Anna Divine. How does Ivy compare to her?