Xbooru - 1:1 1:1 aspect ratio 2010s 2017 animated skeleton blue blush blue tongue blush bottom sans bound bound arms chain leash chained arms chained collar chains clothed collar crying drool ectotongue korean text monochrome monster non-con non-consensual noncon nonconsensual peng2 (artist) peng2 undertale (artist) restrained restraints sans sans (undertale) skeleton solo solo focus submissive sweat tears text uke sans undead undertale undertale (series) visible breath white background