anal
アナル アナルセックス 着衣アナルセックス アナル騎乗位 肛交
Anal penetration. This includes anal sex, anal fingering, anal insertion of sex toys, anal tentacle penetration, and any other type of anal penetration.
If, and only if, a penis is inserted there, then the image should also be tagged sex.
Related tags
See also
The following tags are aliased to this tag: anal_penetration and anal_sex (learn more).
The following tags implicate this tag: anal_fisting, anal_object_insertion, and multiple_anal (learn more).