
Four medical students choose 'ejaculation' as their thesis topic. They use a male subject to experiment on what triggers arousal and the mental structure behind climax. It's a scientific deep dive into the mysteries of the male orgasm.




















Her provocative looks, ranging from swimwear to a female doctor costume, are top-tier. She tends to look a bit too gaudy in other works, so this one is a real gem.
I think the cast is pretty good. While it does include oral and intercourse scenes, the concept is quite unique, so it might not be for everyone. If you're into niche or concept-driven videos, you might like it.
The concept was incredibly interesting!!! I thought, 'They got me! I never thought of that angle!'... 'How did you become a lingerie fetishist?' 'Since when, and in what way...' It starts off calmly, with a slightly mocking tone. If they had maintained this vibe and carefully dissected the pathetic behavior of these perverts from a 'woman's perspective,' it could have been the ultimate 'humiliation-themed' masterpiece. Instead... once it started, it just devolved into a standard 'roleplay club' scenario. I was like, 'Ah, not this again.' It has handjobs, fellatio, thigh sex, and full intercourse. I thought SOD used to be a much edgier studio...
*The basic story is about a masochist man with a fetish being played with by multiple women. Like other profession series, it progresses slowly. I thought I'd like to try inserting myself into a competitive swimsuit, or rather, intercrural sex using a competitive swimsuit.