http://www.mangago.me/read-manga/gintama_dj_mienai_kusari/ Most of Harada's works have rape and they're all really, really good reads.
http://www.mangago.me/read-manga/wakatte_kudasai/
http://www.mangago.me/read-manga/ao_no_exorcist_dj_fill_kill_reverse_my_moment/
http://www.mangago.me/read-manga/tsumuiji_ni_kiss/
http://www.mangago.me/read-manga/deep_flower/
http://www.mangago.me/read-manga/kowarekake_no_omocha/
http://www.mangago.me/home/mangalist/57857/
I mentioned the ones that have Rape in them in the reviews.
Give me the best yaoi rape send ;-;