Mad scientists Okumura and Narusawa have invented the "pussy scope," a clear probe with a light and a camera inside, that they use to explore the depths of a woman's pink pocket, both before and after someone has deposited a load of cum inside them. The resulting experience is like a cross between that infamous Nova special and the old sci-fi flick Fantastic Journey, where a crew of miniature humans explore the human body from the inside. It's quite clinical in some ways, quite intriguing in others; definitely a niche fetish!
Erika Hamijyo is a "soap girl" - a type of prostitute that first slicks up herself and her client with liquid soap before getting down to some slippery business. Charmingly, when they are through with their rather affectionate clinch, they bow deeply to each other with a smile.
Our mad scientists have also invented a stopwatch that can freeze the action in flagrante, allowing for a more scientific before-and-after sample from Rei Moriguchi and her boyfriend. They also have at their disposal a time machine, which Okumura uses to get with a very enthusiastic Yume Aizawa. The shot of her delicately tasting his cum, post-probe, is priceless.
The video ends with a big orgy, three girls (in red, white, and blue panty sets) and three guys on one big bed.
Unlike many Asian imports, this feature is subtitled, sometimes to hilarious effect. There is also no pixelation over the genitals; the viewer gets to see all the goods, without obstruction.