while my wife was visiting her hometown, her sister konatsu came to check on me. we were having a good time catching up, but things took a turn when i went to take a bath. "don't come in, sister-in-law!" i protested, but konatsu insisted on washing my back. before i knew it, we were both in the bathtub together. i couldn't help but feel aroused by her beautiful, unguarded body right in front of me.