
The popular series developing a new erogenous zone for women, 'Spence Breast,' welcomes a new generation H-cup breast, Sakano Marina, who has just transferred from Idea Pocket! Spence Breast is the G-spot of the breast! Developed by a specialist in Spence Breast research, sensitivity of the tail of the mammary gland rapidly increases! While breasts are gripped and restrained, experiencing upper and lower pleasure leading to a brain-bug state! Intense piston sex burning the nipples leads to peak suppression! Toy abuse causing trembling spasms with Spence pleasure and incontinence! Self-orgasm with Spence pies! Unleashed nipple play sex leading to screaming, ascending orgasm!










I checked out a popular series featuring Mari Yakuo, and while her face is cute, I'm just not a fan of the slime nipple look. This series really needs the actresses to have a more… provocative body type to really work. Also, there was less pee in this one compared to other installments. Did the actress have a problem with that scene?
Honestly, she feels more like she's there to have a good time than to work, which is rare. This is probably the most exciting installment in the series since the ones with Yuina Hatano. Usually, with other actresses, you get that fading consciousness at the very end, but here she's already like that right after the initial action! She even tweeted, "I lost my memory halfway through…" (she always says that with the hard stuff lol). There are definitely moments where you can tell she's just reciting lines and following directions, but she's so far gone she doesn't even seem to notice. That's what makes it so good. And, unusually, the way she almost passes out after the mid-scene action and then goes straight into the next stage felt really realistic, probably because she's actually fainted on set before. But, as always, the staff's over-the-top yelling during those moments is unnecessary. It feels so forced and ruins the mood. They've clearly pushed a lot of actresses to their limits with this series, so they could just chill out a bit. I wish they'd just kept going with the piston action for a few seconds, even after she passed out, given that she's Mari Yakuo.
The lovely Mari Yakuo, with her charming smile and ample breasts. This is part of the classic OPPAI series, "Spence Mammary Development." A man calling himself Hashimoto, a specialist in Eastern medicine, gives Mari Yakuo a breast massage. Her now super-sensitive breasts react wildly to the actor's advances! Even the blowjob is incredibly sensitive. Yakuo arching her back and moaning under the actor is just insane! Overall, this is a breast-focused work showcasing Yakuo's heightened sensitivity. Looking forward to seeing more from her! Go for it!