Rule 34 Dev - anal anal_penetration animal_genitalia animal_penis anthro anus balls beach big_balls big_penis black_mane black_tail brown_body brown_fur duo equine_penis eyewear fur genitals looking_at_viewer looking_back looking_back_at_viewer lying lying_on_towel male male/male mane on_front penetration penis raised_tail rear_view sea seaside smile sunglasses water gertgrg equid equine horse mammal hi_res|104888288