Manga where a girlfriend of main character (there are high schoolers) are making an ecchi manga with her sisters or her sister is making this manga and she helps.

probably Ane Comi...

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Onna no Ko ga H na Manga Egaicha Dame Desu ka?

No not this mangas she had sisters helping her making this manga. I remember a scene where the sisters left MC with his girlfriend for a while in room between making manga for them to talk. I think they where doing this because they didnt have parents.

Last edited by turek101 at 11:16 am, Feb 7 2014

Are you sure it wasn't hentai?
Mozaiku x Sanshimai

no it also not this, maybe i mistaken on part about ecchi manga ;/ i think that they were making this manga about christmas / new year and he was helping them making it.

The closest I can come up with is Sore ga Kanojo no Seigi nara, but it's a mother and her 3 daughters and she is a writer of erotic novels.

Sorry its not this manga it was short manga or even oneshot that why i dont remember well also i maybe mistaken on that they where doing ecchi so dont include it in your search.
i sure that girlfriend of main character had sisters and they where making manga in room in they house in apartment block.

I remember this oneshot, but I don't remember the title. It was ecchi rather than H.

It was a oneshot in which sisters of the female lead were ero mangaka and were making their sister help them (assistant work and inking) or maybe even the female lead was a ero mangaka herself.

Male lead came to visit his girlfriend (the female lead) on Christmas, but because she and her sister were very busy trying to meet the deadline of their manga they made the guy help them out too (I think the female lead was hiding this ero manga buisness from her boyfriend). I also remember that the sisters tried to give the couple some time alone at the end so they can have sex (or at least that was very heavily implied), but somehow that plan failed (either the guy fell asleep or they had to start working on another manga). I also remember that the sisters (who were older than male lead) were teasing the guy (as if inking ero stuff wasn't hard enough on the guy already).

Edit: I've searched my complete list and can't find the manga for some reason.

Last edited by jahu at 1:11 pm, Feb 8 2014

Joined this site just to help you out!
There is a very high probability that the story you are looking for is "Until The H Manga Is Done", which is a sidestory (chp 5.5) in Toshiue No Hito. Not hentai, but it is made by Amazume Ryuta.

OMG thanks man i was looking for this ^^ I also searched my lists for this but I couldnt find it thanks Traenor for help