Rule 34 Dev - 2023 anthro anus asgore_dreemurr ass balls bell bell_harness belt big_balls big_butt big_penis black_hair body_writing boots bottomwear bovid brown_body brown_fur caprine chimney christmas christmas_clothing clothed clothing costume dark_hair deer deltarune dialogue duo eyebrows flaccid footwear fur gay genitals gloves goat hair handwear harness hi_res holidays horn jingle_bell jingle_bell_harness male male/male male_only mammal new_world_deer outside penis pink_anus platinumlust presenting presenting_hindquarters property questionable_consent red_clothing red_nose reindeer rooftop rudolph_holiday santa_costume shorts signature simple_background size_difference snow stuck tail text thick_thighs undertale undertale_(series) undressing undressing_another url white_body white_fur writing_on_butt yellow_body yellow_fur|10642471616