1012939

... 2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_tongue bottom_sans brother brother_and_brother brother_penetrating_brother brothers calciumchan closed_eyes clothed clothed_sex digital_media_(artwork) drooling duo_focus english_text fontcest frisk frisk_(undertale) from_behind_position gloves heart-shaped_pupils heart_eyes hoodie hot_dog hotdog human humanoid humanoid_focus incest intraspecies male male/male male_focus monster monster_boy motion_lines papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spoken_ellipsis stealth_sex sweat text thrusting tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) v v_sign video_game_character video_games yaoi

...2010s 2015 2boys 2d 2d_(artwork)animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_tongue bottom_sans brother brother_and_brother brother_penetrating_brother brothers calciumchan closed_eyes clothed clothed_sex digital_media_(artwork)drooling duo_focus english_text fontcest frisk frisk_(undertale)from_behind_position gloves heart-shaped_pupils heart_eyes hoodie hot_dog hotdog human humanoid humanoid_focus incest intraspecies male male/male male_focus monster monster_boy motion_lines papyrus papyrus_(undertale)papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale)seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spoken_ellipsis stealth_sex sweat text thrusting tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series)v v_sign video_game_character video_games yaoi

... 2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_tongue bottom_sans brother brother_and_brother brother_penetrating_brother brothers calciumchan closed_eyes clothed clothed_sex digital_media_(artwork) drooling duo_focus english_text fontcest frisk frisk_(undertale) from_behind_position gloves heart-shaped_pupils heart_eyes hoodie hot_dog hotdog human humanoid humanoid_focus incest intraspecies male male/male male_focus monster monster_boy motion_lines papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spoken_ellipsis stealth_sex sweat text thrusting tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) v v_sign video_game_character video_games yaoi

2010s 2018 animated_skeleton bottom_sans burger crossdressing disembodied_hand disembodied_hands food glass groping hamburger hot_dog hotdog jug maid_outfit maid_uniform molestation pf-pro-fucker pf_pro_fucker platter sans sans_(undertale) skeleton skirt_lift skirt_up solo_focus tray uke_sans undead undertale undertale_(series)

2020 2020s 2d 2d_(artwork) after_sex animated_skeleton blue_heart blush bodily_fluids bottom_sans bottomless brothers cum dazed digital_media_(artwork) fluid fluids food frisk frisk_(undertale) gloves heart heki_(miss60250) hot_dog lying_down lying_on_back lying_on_table male male_focus monster monster_boy on_back out_of_frame papyrus papyrus_(undertale) reaching red_gloves saliva sans sans_(undertale) sausage shirt_up siblings skeleton solo_focus submissive tears third-party_source uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games wasted