Her husband is on a solo business trip. Her only son is unable to attend school and has become a shut-in... Hibiki was about to go to work as usual, but remembered something she forgot and turned back. To her surprise, she found her son masturbating while clutching her pantyhose! The son, who says he loves his mother's pantyhose, which always cheers him up, leads his sexually frustrated mother to take unexpected action to cheer him up...
