gelbooruhttps://xbooru.com/index.php?page=atom&tags=1:1 1:1 aspect ratio 2010s 2017 animated skeleton blue blush blue hoodie blue jacket blush clothed hooded jacket hoodie implied masturbation jacket looking down monster peng2 (artist) peng2 undertale (artist) sans sans (undertale) skeleton solo sweat undead undertale undertale (series) upper body visible breath white background2024-06-20T00:18:41Zgelbooru