Yagami Dai did one in which a tied-up Ranma gets gangbanged by a group of baboons, but I'll be damned if I can find more than a couple of stray pages. Any help finding it would be appreciated...almost as much as I appreciate these "classic" uploads! (EDIT: Wait, it's obviously not Ranma. See other post.)
@sanjix12345: Whoops, I take it back, that ain't Ranma at all. But it's definitely Yagami Dai. All I have is like three scrubby scans from a Yahoo! Auction from years and years ago: https://pixxxels.org/image/t7oxfyqud/ https://pixxxels.org/image/6alwp5qb5/ https://pixxxels.org/image/edekq9cm1/