She tests it

Megumi took the key out of the device and set it down, then examined it in detail. It appeared to be a slightly contoured wooden box with no visible openings and one switch. Would Auntie mind if she turned it on? Probably; Auntie was very possessive of her antiques. She put a note on the system that it was done, but Auntie was seeing Mr. Hamilton at the moment so it would be several minutes before she was free.

After confirming that the only patient in the waiting room was Miss Parbata, a young woman who was having back problems very likely caused by supporting her enormous font, Megumi held the device below the level of the counter and gingerly flipped the switch.

It started whirring and ticking and vibrating in her hand. That was it; no hidden compartments, no concealed blades, no strangeness of any kind. It just vibrated. What possible use could it be? Well, she could think of several possible uses but none of them appropriate to a medical practice. She turned the device off and had naughty thoughts.

The message popped up and Megumi sent Miss Parbata and her enormous bosoms in. Mr. Hamilton came out, obviously finished with the doctor, and less than five minutes later Miss Parabata followed carrying her renewed prescriptions. Because of a late cancellation there was now a twenty minute gap in the schedule. Michiko came out.

"Doctor-sama would like you to come into the back, and bring the medical device with you."

"What about the door?"

"There is an indicator bell, and the phone is set to ring in the back too."

Doctor Murasama gathered the staff in Examination Room Two. She was glad that Megumi wore her hair down and Michiko kept hers up in a makeshift bun; otherwise the identical twin girls would be impossible to tell apart. Her nurse Angie was easier, of course, because a Caucasian girl with curly red hair was about as un-Japanese as you could get.

The Doctor held up the device and showed it to them. "Does anyone know what this is for?"

A trio of blank stares replied.

"For a centuries doctors used to treat a condition called 'female hysteria.' Treatment involved manual massage of certain areas of the body. This device was a major improvement in what was often considered a tedious task. The treatment is harmless to unafflicted women; would you like to see how it was done?"

They all nodded; for the two pre-university girls it would be something new, and for the nurse it would be a history lesson they hadn't covered in her studies.

"Angela, I want you to watch very closely. Megumi, please climb onto the table and lie back with your hands behind your head."

Megumi did as instructed.

"Now spread your legs, please."

She wouldn't; it isn't... Megumi did as she was told.

Doctor Murasama flipped up the girl's miniskirt, then turned on the device and rested it against Megumi's pubes. She started gently sliding it up and down, making sure each stroke crossed Megumi's clitoris.

"Auntie?!?"

"Now," said the doctor, continuing her gentle massage, "the patient did not normally wear undergarments while this procedure was done, for reasons which will become..." a dark wet spot appeared on Megumi's pink panties, "obvious momentarily."

"Auntie... this is... Auntie... ah... aahh... ah..."

Megumi reached toward her crotch but Michiko grabbed her hands.

"Do not interrupt the demonstration, sister!"

"But... aahah... ahah... ohhh... ohh... Auntie... ahh... ahhh... aaa... AAAHH!"

The wet spot on the girl's panties grew substantially.

"Would anyone else like to see how this therapy was performed?"