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alternate_universe bone duo male not_furry skeleton foxvulpine underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead 2016 5:4

alternate_universe bone duo male not_furry skeleton foxvulpine underfell undertale undertale_(series)papyrus_(underfell)sans_(underfell)animated_skeleton undead 2016 5:4

alternate_universe bone duo male not_furry skeleton foxvulpine underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead 2016 5:4

alternate_universe anterior_nasal_aperture bone clothed clothing crossed_arms front_view jacket male not_furry simple_background skeleton solo sweater teeth topwear white_background jazzycat underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead black_and_white monochrome

alternate_universe bdsm blood bodily_fluids bone male not_furry red_tongue skeleton solo tongue lizheru underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead hi_res