Greetings. I realise it's not of the sexy variety per se, but the second of the mini Ika-Musume shorts from the recently popular series has the eponymous character eating a divine shrimp in order to escape her persecution at being teeny tiny and to act as a catalyst for her plans to "invade the land". Role reversal (tiny to gigantic) is always fun. It's a pretty funny coincidence since there was just recently a doujin, albeit featuring normal Ika-Musume, with a very similar set-up. Just check out about 3:30, or the whole thing if you're familiar with and want a good laugh.