rule 34 ambiguous gender anthro anus ass blush bodily fluids brown fur clitoris dialogue domestic cat duo english text fangs felid feline felis female feral fur furry genital fluids genitals huge butt interspecies kitnip larger female larger feral larger pred looking back macro mammal micro micro micro on macro monochrome mouse murid murine nude one eye closed open mouth pussy pussy juice rodent sasha sasha kitnip simple background size difference smaller ambiguous smaller anthro smaller prey text thick thighs unbirth unbirthing vaginal penetration vore watermark 4601397