Aliasing 'anthro_on_anthro' → invalid_tag
Link to alias

Reason:

NOTE: I am still having the problem where it won't let me post these without putting the tag in quotes because it claims the tag is already aliased, when the wiki states it is not & it shows up fine when searched for.

This, like anthro and anthrofied is just too obvious to bother tagging.

If you come to e621 & search for sex you're most likely looking for two furries having sex. If you're not, then there are tags you can add or tags you can block in your search to get what you're after.

anthro_on_feral or anthro_on_human or feral_on_are all fine tags, but 'anthro_on_anthro' is as useless as the tags image or skin