abs all_fours anal anal_penetration anthro anus balls bandage better_version_at_source big_muscles blush bottomless butt canine circumcised clothed clothing digital_media_(artwork) erection fur gangbang group group_sex hair headband heterochromia hi_res humanoid_penis keijimohumohu male male/male mammal mostly_nude muscular open_shirt pecs penetration penis precum sex shaded sharp_teeth short_hair teeth vein veiny_penis