gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2016 2boys 2d 2d (artwork) animated skeleton artist name blue penis blush boner bottom sans brother brother/brother brother and brother brothers clothed digital media (artwork) dream dreaming duo ectopenis erection erection under blanket fontcest food food on body gay glowing glowing genitalia glowing penis incest letthesinwithinbegin male male/male male only monster papyrus papyrus (undertale) papysans pasta penis sans sans (undertale) sex skeleton sleeping spaghetti tentacle third-party source uke sans undead undertale undertale (series) video games wet dream yaoi2024-05-11T05:59:02Zgelbooru