gelbooruhttps://xbooru.com/index.php?page=atom&tags=2020s 2022 2boys 2d 2d (artwork) animated skeleton bottom sans brother/brother brothers clothed cussing digital media (artwork) duo ectopenis english text eye fucking eye penetration fontcest gay incest male male/male male only male out of frame monster onomatopoeia papyrus papyrus (undertale) papysans penis penis in eye profanity sans sans (undertale) seme papyrus sex simple background skeleton sketch skull fucking solo focus swearing text tired but horny (artist) tongue tongue out top papyrus twitter uke sans undead undertale undertale (series) unseen male face veiny penis video game character video games white background yaoi2024-05-18T04:12:29Zgelbooru