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2boys 2d collar color dialogue ectobody ectopenis english english_dialogue english_text gay leash leash_and_collar leash_pull male male/male male_only red_body red_penis sans sans_au sanscest spiked_collar submissive_male talking text underfell underfell_sans underswap underswap_sans undertale undertale_(series) undertale_au yaoi
2d alternate_universe animal_ears animated_skeleton artist_name big_breasts boner bunny_costume bunny_ears color cross_sans cross_sans_(fan_character) dialogue dream_sans dream_sans_(fan_character) dreamtale dreamtale_(undertale_fanfiction) dreamtale_au duo ectobody ectobreasts english english_dialogue english_text erection erection_under_clothes fan_character female female_focus female_sans genderswap genderswap_(mtf) i_wuv_cofi male/female rule_63 sans sans_au sans_oc sanscest selfcest simple_background skeleton straight tagme text undertale undertale_(series) undertale_au xtale yellow_body yellow_eyes
2d alternate_universe animal_ears animated_skeleton artist_name big_breasts boner bunny_costume bunny_ears color cross_sans cross_sans_(fan_character) dialogue dream_sans dream_sans_(fan_character) dreamtale dreamtale_(undertale_fanfiction) dreamtale_au duo ectobody ectobreasts english english_dialogue english_text erection erection_under_clothes fan_character female female_focus female_sans genderswap genderswap_(mtf) i_wuv_cofi male/female rule_63 sans sans_au sans_oc sanscest selfcest simple_background skeleton straight tagme text undertale undertale_(series) undertale_au xtale yellow_body yellow_eyes