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2boys 2d after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother/brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus_(undertale) papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans_(undertale) sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath white_background yaoi

2boys 2d after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother/brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus_(undertale)papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans_(undertale)sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series)video_game_character video_games visible_breath white_background yaoi

2boys 2d after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother/brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus_(undertale) papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans_(undertale) sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath white_background yaoi

1:1 1:1_aspect_ratio 1boy 1girl 2d 2d_(artwork) alternate_version_available anthro anthro_only arm_around_another's_neck arm_around_neck asgore_dreemurr asgoriel bathroom big_breasts blonde_hair bodily_fluids boss_monster breasts caprine chubby chubby_anthro chubby_female chubby_male closed_eyes completely_nude completely_nude_female completely_nude_male couple cum cum_in_pussy cum_inside deltarune digit_ring digital_media_(artwork) duo female_anthro female_penetrated floppy_ears furry furry_female furry_male furry_only genital_fluids genitals goat goat_boy goat_ears goat_girl goat_horns heart horns husband husband_and_wife intraspecies jewelry kissing leg_lift making_out male male/female male_anthro male_penetrating male_penetrating_female mammal married_couple monster monster_boy monster_girl navel nipples nude nude_anthro nude_female nude_male overweight overweight_female overweight_male penetration penis pussy ring romantic_couple seme_asgore sequence sequential sex shower shower_sex showering smush-sin straight sweat third-party_source tongue top_asgore toriel undertale undertale_(series) vaginal_penetration video_game_character video_games wedding_ring wet wife

1:1 1:1_aspect_ratio 1boy 1girl 2d 2d_(artwork) alternate_version_available anthro anthro_only arm_around_another's_neck arm_around_neck asgore_dreemurr asgoriel bathroom big_breasts blonde_hair bodily_fluids boss_monster breasts caprine chubby chubby_anthro chubby_female chubby_male closed_eyes completely_nude completely_nude_female completely_nude_male couple deltarune digit_ring digital_media_(artwork) duo female_anthro female_penetrated floppy_ears furry furry_female furry_male furry_only genital_fluids genitals goat goat_boy goat_ears goat_girl goat_horns heart horns husband husband_and_wife intraspecies jewelry kissing leg_lift making_out male male/female male_anthro male_penetrating male_penetrating_female mammal married_couple monster monster_boy monster_girl navel nipples nude nude_anthro nude_female nude_male overweight overweight_female overweight_male penetration penis pussy ring romantic_couple seme_asgore sequence sequential sex shower shower_sex showering smush-sin straight sweat third-party_source tongue top_asgore toriel undertale undertale_(series) vaginal_penetration video_game_character video_games wedding_ring wet wife