gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2018 animated skeleton big penis bottom sans bound wrists disembodied penis grey penis imminent penetration imminent sex looking down macro male macrophilia male only microphilia nsfwgarbagedump penis pixiv id 36285069 sans sans (undertale) size difference skeleton socks socks on solo focus testicle tied up uke sans undead undertale undertale (series) veiny penis white background yaoi2024-05-14T04:52:28Zgelbooru