gelbooruhttps://xbooru.com/index.php?page=atom&tags=2020s 2021 2boys 2d 2d (artwork) animated skeleton ass black and white black censor bar blue blush blush bottom sans bottomless bottomless male censored censored penis digital media (artwork) ectoplasm ectotongue fellatio goma dango 555 japanese text male male only monochrome monster oral orange blush partially clothed penis pixiv id 49095896 sans sans (undertale) sex skeleton socks socks on solo focus speech bubble sweat tank top tanktop text tongue tongue out toony topwear uke sans undead undertale undertale (series) upper body video games white background yaoi2024-05-09T23:21:41Zgelbooru