
At the request of the SOD Sex Science Lab, Sora Honda conducts an experiment on the sensitivity link between the nipples and the penis. Through rolling, pinching, kneading, licking, and sucking, she verifies the reaction with her eyes, mouth, and vagina. A research record of a production AP who unconsciously touches her nipples.




















There are a lot of really intense nipple torture scenes out there, but I actually liked how simple this was. From a female perspective, the thought of 'Does a man even *feel* his nipples?' is kinda exciting. My only complaint is they only used guys who are already sensitive down there. I wanted to see someone who's never experienced nipple play before get turned on, and see *that* process. It's a given that a guy with developed nipples will get hard...
This feels a bit *too* focused, you know? They hired a forest primitive, but Sora-chan doesn't go fully nude. Honestly, I wish Honda Sora would leave SOD and move to a company like Premium, and really shake things up in the industry as a solo artist.
So, at the request of SOD's Sex Science Lab, the actresses are conducting a practical experiment to link a man's nipple sensitivity to his penis. They're trying all sorts of stimulation โ rolling, pinching, kneading, licking, sucking โ and visually confirming the 'chinpik' reaction through their eyes, mouths, and vaginas. Apparently, it's based on the research notes of a production assistant who noticed that guys tend to unconsciously touch their nipples to make their dicks more sensitive, even if they're not actively seeking a private encounter. This is different from anything I've seen before; it's leaning more towards the scientific side of things.
I'm a little disappointed the kissing wasn't more proactive... She's so pretty, I wanted to see them kissing.
I thought it was just a video of endlessly teasing the actor's nipples to make him feel good, but it's a wonderful research where Sora-san herself gets her nipples teased and feels good too! I laughed at how many times I thought 'switch it up there'. I wish I could be researched by Sora-san someday.