Ok, I re-read this for a second time... first time I re-read it was in 2014..and I thought it was sweet...but I'm not sure..can't Yuuko be thought of as some pervert who only liked this tentacle thing? ( That no one knows where they came from? ) and why does there have to be shotacon ugh, Yuuko having orgies to "try out things" is not something I like but why bring your lil bro to it? Stick to the woman dammit, literally xD
Anyway I do like the part where Mizuki is back to normal and they "have sex in a normal way" but then Yuuko has to use those again, I think she loves the tentacles more or at least as much as she loves Mizuki :(
I am not sure if I like it or not... futanari is not something I really like, this is weird futa though...like "borrowed" instead of an actual thingie ... Can't decide u_u but it's ok I guess, I liked Mizuki character design, the rest is, confusing yes.