Oda explained why there are big breasts in One Piece - One Piece

Oda explained why there are big breasts in One Piece D: We realized that Robin has huge breasts. We checked from the side, and Nami also has huge breasts. Why do they both have such huge breasts? And could it be Oda-san's preference? That was a question from us two 10-year-olds. P.N. Sakucchan & Yuzu-chan 

Contrary to what the anime would have you believe, Oda has been fairly consistent with Nami's proportions since the early days of the series : r/ OnePiece

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