gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2018 2boys 2d 2d (artwork) animated skeleton begging blue blush blue choker blue collar blue tongue blush bottom sans choker clothed collar digital media (artwork) ectotongue english text imminent fellatio male male/male male focus male only malesub monster nsfwgarbagedump nude open mouth petplay pointing at self sans sans (undertale) sequence sequential skeleton solo solo focus submissive submissive male talking talking to viewer text tongue tongue out uke sans undead undertale undertale (series) upper body white background yaoi2024-05-10T06:12:36Zgelbooru