adult/cub
If meaning an adult on a cub, use instead: Adult_on_young, young_<form> (young_anthro/young_feral/young_humanoid/young_taur), younger_form.
If meaning an adult cub, this is invalid.
If meaning an adult on a cub, use instead: Adult_on_young, young_<form> (young_anthro/young_feral/young_humanoid/young_taur), younger_form.
If meaning an adult cub, this is invalid.