There was a manga that we had here a couple of months ago. What I remember of the conceit was it was two girls who had to sneak inside of a locker at school to hide from people, and then it gets really risque with some touchin' and I THINK an ear bite?
I can't exactly remember the specific premise of this one, but it might be that one of the MCs likes taking pictures of the other? I can really only remember a snippet of one of the chapters. So in this chapter the MCs are at the school showers(?) and they kiss or something and the camera that was on record, recorded them kissing. I think the one who owns the camera gets flustered and the other one actually did it on purpose.