>>2047208>>2047210Well, there's this, I guess:
http://www.nicovideo.jp/watch/sm30818360It's on Nico, so any real nudity is censored. That said, the video has two songs; Rin starts off in a modest bikini in the first one, and changes to a micro bikini in the middle of it (a curtain falls while she is changing, but rises up in the middle of it causing pic related). In the second song she changes into a sling bikini that doesn't like staying on her breasts.
Hopefully the author will upload an uncensored version on Iwara, but I wouldn't count on it.
