Rule 34 Dev - 2023 anthro artist_name biceps big_muscles black_body colored detailed_background dialogue english_text equid equine flaccid genitals group gym hair hi_res horse inside lonelycharart looking_at_viewer male mammal muscular muscular_male navel nipples nude orange_hair orange_tail pecs penis pointing_with_thumb public public_nudity silhouette solo_focus standing tail talking_to_viewer text trio weights yellow_eyes|12615815696