You can try some of Harada's works.
Yes, definitely Harada if you also want to be traumatized.
http://www.mangago.me/read-manga/fuuzokugurui_desu_ga_toshishita_danshi_ni_kokuraremashita/
the first story has lots of toys ≧∇≦
Truer words have not been spoken! xD
Harada? I tried searching for it but it came out some kind of lovey dovey manga... Can you gimme the link? Hahhah thx btw..
Go to myreadingmanga then search for harada. Good luck.
Is there any yaoi with bdsm n rape genre? I dont know.. Need somethibg really really cruel ..n lots of toys r involved..
I already read hoshino yakata.. Something like that is fine. But that one is not cruel right.. Hahha looking forward to your recommendations!