rule 34 ambiguous gender anal animal genitalia animal penis anthro anthro on feral anus ass balls blue body blue fur blue scales book capcom duo english text equine genitalia equine penis erection felid felyne feral fur genitals hi res hooves kirin mh larger feral larger male lynian male maleambiguous mammal medial ring monster hunter oral palico penis quadruped rear view rimming scales semi anthro sex size difference smaller ambiguous smaller anthro tail tail grab tenaflux text unguligrade zoophilia 9043467