gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d 2d (artwork) animated skeleton ass blush bottom sans clothed clothing digital media (artwork) english text fellatio fluids genitals hooded jacket hoodie jacket licking licking penis male male/male male focus male only male pov monochrome monster oral oral sex penis penis grab pov sans sans (undertale) sex simple background skeleton solo focus text third-party source uke sans undead undertale undertale (series) unknown artist video games white background yaoi2024-05-13T02:36:15Zgelbooru