gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d 2d (artwork) animated skeleton artist name artist signature blue blush blush bottom sans cum cum in eye dark background digital media (artwork) disembodied penis eye fucking eye penetration fully clothed gooey-draws-shit heart male only penis penis in eye sans sans (undertale) simple background sitting skeleton skull fucking uke sans undead undertale undertale (series) video game character video games yaoi2024-05-20T23:39:34Zgelbooru