Xbooru - 1boy 1cuntboy 2010s 2018 2d 2d (artwork) animated skeleton blank speech bubble blue blush blue pussy blush bottom sans brother brother/brother brother and brother brother penetrating brother brothers clothed comic comic page comic panel cum cum on ass cum on body cum on clothes cum on lower body cum on pussy cum outside cumshot cuntboy cuntboy penetrated cuntboysub digital media (artwork) dominant dominant male duo ectopenis ectopussy ectotongue ejaculation fontcest genitals humanoid incest indoors intraspecies male male/cuntboy male penetrating male penetrating cuntboy maledom monochrome monster monster boy orange penis orgasm papyrus papyrus (undertale) papysans partially colored penetration penetration from behind penetration through clothes penis penis in pussy penis through clothing pull out pussy pussy through clothing sans sans (undertale) seme papyrus sequence sequential sex sex from behind sex through clothes sex through clothing sibling incest siblings skeleton speech bubble submissive submissive cuntboy titleze top papyrus uke sans undead undertale undertale (series) unseen male face vaginal vaginal penetration vaginal sex video game character video games yaoi | 1027544

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1boy 1cuntboy 2010s 2018 2d 2d_(artwork) animated_skeleton blank_speech_bubble blue_blush blue_pussy blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed comic comic_page comic_panel cum cum_on_ass cum_on_body cum_on_clothes cum_on_lower_body cum_on_pussy cum_outside cumshot cuntboy cuntboy_penetrated cuntboysub digital_media_(artwork) dominant dominant_male duo ectopenis ectopussy ectotongue ejaculation fontcest genitals humanoid incest indoors intraspecies male male/cuntboy male_penetrating male_penetrating_cuntboy maledom monochrome monster monster_boy orange_penis orgasm papyrus papyrus_(undertale) papysans partially_colored penetration penetration_from_behind penetration_through_clothes penis penis_in_pussy penis_through_clothing pull_out pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sex sex_from_behind sex_through_clothes sex_through_clothing sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi

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