Looking for Fellatio oriented doujins,mangas and animes

[RulerMan]

I know that most h-mangas have a Oral action, but mostly just has a blowjob for a few pages or panels.

I'm looking for hentai that focuses particularly on blowjobs. Manga where the blowjob in the main focus, not something thats tacked on before the acutal sex happens. The majority of the pages are taken up with the blowjob.

Can anyone point me in the direction of some hentai like this?

 

[johnwatson0151]

the only one that i can think of is night shift nurses: yagami yuu