I've only seen brief scenes of this type of action, once in a japanese porn, where the well-endowed woman was lying on her back, and this smaller girl was straddling her breasts, humping back and forth on her juicy, oiled-up mounds.
The second time I saw it was when a chick was mowin' down on some quality muff when all of a sudden she whipped her tit out and started fucking the girl's pussy with her tit; rubbing it all over her clit, pressing it up against her. It was incredibly, incredibly, incredibly hot.
Has anyone else seen any type of tit-pussy action? I'm craving more!!!