There are a couple of variations with this lora, you can use these tags in any combination you want, alongside the trigger words:

Humping: will show movement of hips

Anus: will show the anus but penetration will still be vaginal

Anal penetration

Sitting backwards/From behind: this will cause the character to be facing the backrest of the chair (this can still happen sometimes even without the tag but this makes it more consistent)

Facing viewer: use to avoid character from facing aways when using base trigger words

These are the main tags but im sure you can use others, please share if you find other tags that work i would like to see what you guys can come up with.