anilingus
A form of oral sex between the anus and mouth. Depending upon the context in which it is performed, this sex act can either be used for personal pleasure among consenting parties or as a form of erotic humiliation.
In such cases, this leads to scat play as either both parties might consume of what remains after rimming, especially if one is constipated, have to poop or has enema applied.
See also
The following tags are aliased to this tag: analingus, annilingus, and rimjob (learn more).
The following tags implicate this tag: rusty_trombone and standing_anilingus (learn more).