i remember http://www.mangago.me/read-manga/koi_ni_nare/ has a scene like that
another one that has a scene like that http://www.mangago.me/read-manga/shigekiteki_na_kankei/
think it might be this one:
http://www.mangago.me/read-manga/kanpeki_na_koibito/
Not it, but thanks.
Not it either but Thanks for trying.
Thank you for trying but this is not it.
I know what I'm looking for is yaoi. Here is what I remember: One guy finds another guys book but the book is about bondage.
Help is appreciated. Thank you.