Last night, Hiroshi paid a visit to his girlfriend's house where he met her kind and beautiful mother. He couldn't help but feel inappropriate feelings towards her. That evening, after being graciously allowed to stay by Mrs. Girlfriend, Hiroshi found himself aroused during their intimate bath time exchange. Unable to control his desires any longer, he sneaked into Mrs. Girlfriend's bedroom late at night and attempted to engage in forbidden sexual activities. Just as he was about to penetrate her, they were interrupted at the last moment...