Public flashing is catching on big in Japan. But just not any kind of nudity in the urban wild — it’s all about getting buff in convenience stores.

According to The Tokyo Reporter, the occurrences are usually in the Don Quijote (their spelling, not mine), or Donki, chain of stores, due to the scattershot arrangement of goods. The flashing ranges from a quick peak of panties to spread eagle poses to female fondling.

Men have also been know to wank their puds to the show. Customers should beware when they buy those doughnuts with extra frosting.

No word if Sancho Panza approves.

Donki serenade: perverts play peek-a-boo with discount store shoppers