rule 34 anthro anthro on anthro bodily fluids canid canine canis claws clitoris duo english text erection female female penetrated genital fluids genitals half closed eyes hi res high angle view hindpaw interspecies larger male looking pleasured lutrine lying male male penetrating male penetrating female mammal mustelid narrowed eyes nude on back pawpads paws penetration penis pussy size difference smaller female smaller penetrated solo focus spread legs spreading standing straight tailgrip text tongue tongue out vaginal penetration vein veiny penis wolf 4348941