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Porn star Bonnie Rotten showcased the laws of our land better than any stupid attorney ever could -- by showing off her breasts all over New York City.

Bonnie was actually shooting a spread for Inked Magazine ... and took full advantage of the New York state law that allows women to go T-O-P-L-E-S-S in public.

Even though the heavily tatted Bonnie is a west coast chick -- she seemed to adapt very quickly to the Empire State's more liberal view of boobs.

Also obvious in this video ... all of Manhattan adapting to their view of Bonnie's boobs. Especially the tourists.