simulated_fingering
When fingering is suggestively performed on an object, typically a yonic symbol, but implied fingering could also be used to symbolically respresent anal fingering.
In images of this kind there is usually suggestive fluid featured, meant to resemble vaginal_fluids. If the image features an object resembling a vulva or pussy juice, yonic symbol would also be an applicable tag.
H4. See also
* tag group:simulated sex acts