Aseru (Yaoi) manga
The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised.
Kazuo is obsessed with his friend's older brother, Yuudai. When Tsutomu hits his Yuudai, stunning him, Kazuo decides to take advantage... and he doesn't care if either Yuudai or Tsutomu like it. (Warning: non-con)
Continued in 'Misshitsu' (also on Manga Fox).
Other manga by the same author(s)
These lists have this manga