face sitting

When a man sits on a woman's face with his ass ("male" facesitting), or the opposite ("female" facesitting), or a man sits on another man's face with his ass ("gay" facesitting) or a woman sits on another woman's face with her ass ("lesbian" facesitting).
Usually the person under the ass licks it (an act which is called "rimming" or "rimjob").
Sometimes the man which facesits a woman also slaps her pussy for his pleasure (an act which is called "cuntslapping" or "cuntbusting").

"That big hot hunk is face sitting that girl and spanking her pussy!"

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