Rule 34 Dev - abs anal anthro biceps dialogue erection female fur genitals group group_sex hair holding_penis interspecies lube male masturbation muscular nude oral pecs penile penile_masturbation penis sex text threesome trio vein veiny_penis zummeng sasha_(trigger12) equid equine horse mammal comic digital_drawing_(artwork) digital_media_(artwork) english_text greyscale monochrome|2696030295