Xbooru - !!! 1:1 1:1 aspect ratio 1boy 2d 2d (artwork) ahegao animated skeleton artist name blue blush blush bottom sans digital media (artwork) drooling ectotongue exclamation mark exclamation point fangs heart-shaped pupils heart eyes male male ahegao male focus male only malesub moan monochrome monster multiple views open mouth orgasm face partially colored pleasure face sans sans (undertale) simple background singingsans skeleton solo male submissive submissive male tears third-party source tongue tongue out trembling uke sans undead undertale undertale (series) video games white background