ok a yuri author or mangaks (i forget) goes to sisters cultural festival and is intrested in a girl there
the girl is intrested in her back,and knows who she is, thats about as good as i can remember

my harddrive crapped out and 3 months of manga was lost, but it may be older than 6 months old, and it may also be part of a bigger collection, and i believe there were 2 chapters, one being an extra.

anyone able to help?

and sorry if this is in the wrong place, its late, i am tired and didn't notice any other place this fit better.

This sounds like Soft-Boiled Fujoshi, a sidestory of Hanjuku Joshi.

that was it, and the extra was Soft-Boiled Fujoshi Before Winter Comiket

thanks