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2010s 2017 2boys 2d 2d_(artwork) animated_skeleton bed bedroom blanket bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel digital_media_(artwork) duo fontcest incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans sans sans_(undertale) sequence sequential skeleton sleeping sleeping_together supermuuh uke_sans undead undertale undertale_(series) video_games waking_up yaoi