Ok, I completely fell in love with this OVA. It is the first ecchi series to
seriously turn me on, and it did it real good as well. That first bed scene was god damnit to hell one of the sexiest scene in both anime and hentai history.
Was also very pleased with Ako's and Riko's seiyuu's. And, I have to say that Riko is the one that rocks my boat, lol.
Oh, and noticed that you had some problems with watching it on crunchyroll so I'm going to go ahead and put up another link
here