FURVERT!

absurd_res animal_genitalia animal_penis anthro anus backsack balls big_penis butt color_swatch equid equine equine_anus equine_genitalia equine_penis erection genitals hi_res horse male mammal model_sheet muscular muscular_anthro muscular_male nude pecs penis presenting presenting_hindquarters puffy_anus sheath solo vein zerolativity