In addition to kissing girls and liking it, Katy Perry may also be finding ways to indulge her edgy and experimental nature while on tour in Asia. And we don't mean with opium or groupie lovin'... she's a good, engaged woman after all. Katy recently asked her Twitter followers whether she should get her feet cleaned by toothless piranhas.

Fish pedis don't actually involve piranhas; the fish used are either garra rufa (also called doctor fish) or chin chin, which are popular because they're less expensive fish. After soaking your feet in a fish-filled tank of water for about 15 to 20 minutes, your feet are left feeling smooth as a lychee. The upside is that you get smooth soles without involving a razor (which is banned in many locations, anyway) or leaving behind a collection of grated-cheese-looking foot shavings (eew... but you know it's true).

Funny thing is... fish pedicures aren't actually all that foreign and exotic. In fact, they've already become mainstream enough to have been banned in at least 14 U.S. states. And if you live in New York, soon you too may have to cross state lines for a fish pedi, as a new bill being proposed by Senator Jeff Klein would ban the practice.

As Bloomberg reports, the state bans result from concerns about how sanitary the practice is. Los Angeles podiatrist Dr. Joseph Borden explains, "Soaking your feet in non-chlorinated fresh water with a dense amount of fish can possibly lead to bacterial and possibly viral infections." This is because "salons use the same fish to exfoliate the skin of many customers; these fish cannot be sanitized or sterilized and their droppings can also carry disease."

But according to John Ho, who runs three Virginia salons and claims to have first brought the procedure to the U.S., fish pedis have never resulted in any health issues with his customers.

Get your fish on if you dare--but those better be some gnarly calluses to risk having to call in sick due to a fish poo-related incident.