Xbooru - 1:1 1:1 aspect ratio 1boy 2d 2d (artwork) animated skeleton artist name blue blush blush bottom sans clothed clothing digital media (artwork) english text glowing groping hand on chest hand on face hands implied masturbation male male focus male only malesub monochrome monster multiple views orgasm face partially clothed partially colored sans sans (undertale) shirtless sigh simple background singingsans skeleton solo focus solo male submissive submissive male talking to viewer text third-party source topless topless male trembling uke sans undead undertale undertale (series) video games