Niches are niches, right? -- I mean seriously how awful can it be? haha im kidding this is one of the gnarliest things out there besides straight pissing. I don't think pissing should be in any porn, but dudes like it so what the hell?
I love watching atm but I would never ask a girl to do it. If the girl does it on her own then I'm into it but I'm not pushing a girls head down to suck my cock after it's been in her ass.