Does my bum look big in this?

I would like to annouce that not only have I had the longest sleeves at the cosplay ball, soon I will have the largest arse!

I was trying on Rozy's dress last night with the petticoat. It does indeed make my arse very large. I'd I don't think the skirts hang out enough yet, so I'm off to buy more tulle. I'd also like to point out that there is no way Ivy fights in that costume, unless it's painted on.