Xbooru - 2010s 2016 2boys 2d 2d (artwork) animated skeleton balls bigger male bone clothed clothing dialogue digital media (artwork) duo english text food gay hooded jacket hoodie hot dog hotdog hotlegmeme humanoid robot jacket larger male machine male male/male male focus male only male out of frame mettasans mettaton mettaton ex monochrome monster open mouth penis penis hot dog robot robot humanoid rotic penis sans sans (undertale) simple background skeleton smile solo focus text undead undertale undertale (series) unseen male face video game character video games white background yaoi