gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2017 2boys anal anal penetration anal sex animated skeleton ass big dom bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blanket blue eyes blush bondage bottom sans bottomless bound bound arms closed eyes clothed clothed male clothing domimant domimant male drooling duo eyewear fire elemental glasses grillby grillby (undertale) heart-shaped pupils heart eyes hisuivirus larger male larger penetrating larger penetrating smaller laying on side legs grab line art lineart lying on side male male/male male only male penetrated male penetrating male penetrating male maledom malesub monster on bed penetration penis restrained restraints rope rope bondage sans sans (undertale) seme grillby sex simple background size difference skeleton small sub small sub big dom smaller male smaller penetrated smaller sub smaller sub bigger dom submissive submissive male sweat tied up top grillby topwear uke sans undead undertale undertale (series) video games white background yaoi2024-05-08T20:38:13Zgelbooru