Sorry, I would have asked this in the other forum but it's an 18+ manga I'm looking for.
I'm trying to remember the title.

In one chapter, the setting is the school and some girls are running a race. They get doused with something which causes their clothes to dissolve mid-run (the guys had rigged this).
Then while the girls are running, or rather streaking, a bunch of guys are up on some kind of arch or gate, and are bukakke-ing the girls as they run by.

Unfortunately, that's all I can remember. If it helps, I'm pretty sure this was a 50-60+ chapter series when I read this chapter at the time and this particular scene was in chapter 59 or later.

I'm not sure, but I think I heard that scene was from Angel. The part about the chapter number suggests otherwise, though.

Edit:this is the thread I was remembering.[url]http://www.mangaupdates.com/showtopic.php?tid=10055&page=1[/url]

That's it! Thanks!