As far as I'm aware:
Blowjobs = Most pics are of cocksucking.
Oral = Oral on either sex, although some sites do have an oral category as a blowjob category. In that case Oral = Blowjobs.
Facials = The majority of pics need to be of facials.
Some link lists will accept a run of blowjob pics ending with a facial in their facial category, but I'd expect a few rejections.
I might be wrong, but that's the way I've always seen it.
