we all kind of know that there isn't a lot of yaoi that features girls
so what about yaoi that has a yaoi fangirl in it?

Angel Diary ok, it's not a yaoi, but everybody in school think it is....since it's a girl dressed as a guy
Jinsei wa Barairo Da the main character's girlfriend is very intent on getting her ex to sleep with guy...what's with that?

and i also rememeber there was one story where a guy was tricked on to dating a man by his yaoi-obsessed friend (who's a girl) and they end up together...but i forgot title.

can anyone think of anything else?

Maybe the one you're thinking of is Self Portrait? Maybe.... I don't remember it all too well. Either way, it applies.

Definitely Lucky-kun

and a shoujo, Fujoshi Kanojo.

I can't think of anymore.

Self Portrait by ITSUKI Kaname.

“𝒯𝒽𝑒 𝓇𝑜𝓈𝑒'𝓈 𝓇𝒶𝓇𝑒𝓈𝓉 𝑒𝓈𝓈𝑒𝓃𝒸𝑒 𝓁𝒾𝓋𝑒𝓈 𝒾𝓃 𝓉𝒽𝑒 𝓉𝒽𝑜𝓇𝓃𝓈.” ― 𝑀𝒶𝓌𝓁𝒶𝓃𝒶 𝒥𝒶𝓁𝒶𝓁-𝒶𝓁-𝒟𝒾𝓃 𝑅𝓊𝓂𝒾.
あたしは腐女子です。少女漫画、たくさん読んでください。

Quote from wolf_unknown

Maybe the one you're thinking of is Self Portrait? Maybe.... I don't remember it all too well. Either way, it applies.

yup, that's the one

edit: Interval

Yume no Kodomo

in Junjou Romantica the only significant female character is a fan of one of the main characters who happens to be a yaoi erotic fiction writer