I was excited by the perky butts of the married women who worked part-time at the izakaya where I work, but their aprons and skirts flipped up and I could see their panties! Their underwear was a thong that was digging into their butts! When my dick touched the wife's butt and I realized I had an erection, she gave me a naughty smile and we had sex in the kitchen and at the dining area, hiding it from the other staff and customers.