gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d 2d (artwork) animated skeleton artist name blanket blue blush blue eyes blue penis brothers clothed counch covering own mouth digital media (artwork) duo ectopenis fontcest ganzooky handjob incest indoors male male/male male only monster nsfwsinningsans orange eyes papyrus papyrus (undertale) papysans penis sans sans (undertale) sitting sitting on lap skeleton undead undertale undertale (series) undertale fanfiction video game character video games watching tv yaoi2024-05-10T19:37:29Zgelbooru