gelbooruhttps://xbooru.com/index.php?page=atom&tags=1:1 1:1 aspect ratio 2020s 2021 2boys 2d 2d (artwork) 2d animation abosinsin anal animated skeleton animation bad id bad twitter id big dom big dom small sub big penis bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller bottom sans brother brother/brother brother and brother brother penetrating brother brothers carrying carrying another carrying partner carrying position clothed cropped cropped image digital media (artwork) duo ectopenis edit edited fontcest gif incest larger male larger penetrating larger penetrating smaller legwear loop looping animation low res low resolution lowres male male/male male only male penetrated male penetrating male penetrating male maledom monster orange penis papyrus papyrus (undertale) papysans penetration penis sans sans (undertale) seme papyrus sex short playtime skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom socks stand and carry position third-party edit thrusting top papyrus uke sans undead undertale undertale (series) video game character video games white background yaoi2024-05-08T07:44:27Zgelbooru