gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2016 2boys animated skeleton bdsm blindfold blindfolded bondage boots bottom sans dominant dominant male domination fel-fisk humanoid humanoid robot male male/male male only maledom malesub mettasans mettaton mettaton ex nude pink boots robot robot humanoid sans sans (undertale) seme mettaton sinisk skeleton stepped on submissive submissive male top mettaton uke sans undead undertale undertale (series) yaoi2024-05-09T16:33:55Zgelbooru