Ero Manga Mitai na Koi Shiyo

-both hentai -both involve the creation of the hentai genre -both are quite vanilla 

- Both are adapted from a manga - Both feature light-hearted, semi-romantic scenarios with a dash of comedy thrown in; in general both are very vanilla - Both feature very voluptuous girls-- big bouncing breasts, alluring curvy asses, etc. 

Both hentai anime consist of series of short happy love stories, obviously with a lot of sex scenario attached.  

Light-hearted, funny hentai. I repeat, both series have no unacceptable hentai fetishes. Both have a lot of comedy scenes that provide some amusing laughs. 

Both are based on ero-manga and have moe personalities.