gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d 2d (artwork) anonymous bottom gaster digital media (artwork) faceless male g-clone (artist) gaster gaster (undertale) gay genitals licking licking penis male male/male male only oral penis penis out sex sucking penis uke gaster undertale undertale (series) unknown male unseen male face video games white background yaoi2024-05-26T08:16:15Zgelbooru