Okay, so as a story? Garbage. Not realistic at all, the writing is embarrassing, and the characters are shallow at best. But if you picked up this title, you probably weren't looking for a strong narrative. As a piece of pornography, I think this manga is pretty successful. If you enjoy things like overstimulation, sex so overwhelming and intense it causes screaming and memory loss, etc...this is a good fit. Also it's really funny to see how they somehow connect every chapter to how big the love interest's junk is. Bonus points for not having any content that makes me throw myself out the window (except outof exasperation).