I saw a clip embedded withing a gagging compilation where one girl was in the pildriver postion, her butthole splayed open by some sort of gynecological instrument while another girl got throatfucked over her and everytime she coughed up phlegm she aimed into the first girl's splayed anus. The splayed butt has a disgusted look on her face the entire time and who can blame her? I found no eroticism in it aside from butt girl's furrowed brow, which was kind of hot.