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Real or fake? It’s a question that’s plagued a lot of mankind since the first breast implant surgery was performed in 1962.

These whoppers belong to Japanese boob extraordinaire Rio Natsume, though, and according to our database, her king-sized J cups are 100 percent organic. Somehow. Natsume’s been around for quite a while and she’s starred in so many straight to DVD titles, you’d need a dual monitor set up to see them all on one page.

We so get the fascination, too. It’s not everyday you see a petite, 5-1, 110 pound pinup model with breasts that weigh about as much as she does.