The son-in-law was at a loss as to what to do with the overflowing sex appeal of his wife's mother, Ayumi. She was so alluring that she must be erotic. Driven by Kokoro, he peeked in as she changed clothes. Her voluptuous breasts looked as if they were about to burst through her shapewear, and her body lines were obscenely exposed as it was forcibly tightened... Her body was so much more than he could have ever imagined, and the son-in-law swallowed his saliva as he tried to put a lid on his budding desire, but... Every time he saw Ayumi, he remembered the obscene scene he had peeked at that day...