The only public paizuri research institution in Japan, the 'Paizuri Research Institute,' this time with a subject who has 100cm I-cup massive breasts, Hatsuki Noshiro. We will thoroughly research her firm and beautiful massive breast paizuri.
In the dimly lit research lab, Noshiro-chan is made to stand in her school uniform. A male researcher approaches from behind and slowly begins to grope her massive breasts. Even through her uniform, the texture of her massive breasts can be felt. As she gets groped, Noshiro-chan becomes excited and is made to masturbate; she reaches orgasm with intense breast rubbing.
After removing her uniform, observing the massive breasts, oil is poured onto Noshiro-chan's breasts and rubbed in while pressing them against a transparent acrylic board. The changing shape of her glossy, shiny massive breasts is recorded. Then, paizuri practice with a dildo. Guided through various techniques—up and down, side to side, under the breasts, nipple rubbing—and brought to ejaculation.
Having passed the dildo paizuri test, Noshiro-chan now performs paizuri with a researcher's penis. After using plenty of saliva for a blowjob to achieve full erection, she demonstrates various paizuri techniques. The researchers can't hold back and release a massive amount of semen!
Noshiro-chan, wearing see-through swimwear, is covered in a large amount of bubble soap for the bubble wash experiment. While being washed, her breasts are groped intensely, making her feel pleasure as she performs bubble paizuri.
In the final experiment, Noshiro-chan is surrounded by all the researchers, who grope her massive breasts collectively. Then, using vibrators, dildos, and other toys in quick succession, they drive her to orgasm with a face of ecstasy.
Noshiro-chan eagerly gives head to the researchers' penises, bringing them to erection one after another for line-up paizuri and breast ejaculation. She engages in intense breast-shaking sex with a well-endowed researcher, spraying out fluids and screaming in orgasm!
Even after reaching orgasm, she is relentlessly penetrated, with the researchers' massive amounts of semen sprayed onto Noshiro-chan's massive breasts!
