Not sure if this is it but: http://www.mangago.me/read-manga/body_talk_paradox/mf/v01/c006/
Chapter 6 of this - clumsy worker who is always getting into car accidents ends up sleeping with a guy who's mean to him
http://www.mangago.me/read-manga/joushi_tono_hitoban/
Is it this one?
Sorry thats not it. But thanks anyway.. ^^
Thats the one!! Thank you so much!!!!!!
Please help. I want to read this manga again but forgot the name. Its about a naive uke who always makes mistakes at work and got drunk and slept with his boss who is a sadist