gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d animation animated animated skeleton animation anon anonymous anonymous male artist name blue blush blush bottom sans clothed cum cum in mouth duo fellatio gif grabbing penis heart male male/male male focus male only penis grab sans sans (undertale) skeleton solo focus sucking penis tombone-jack tomis-jb uke sans undead undertale undertale (series) unseen male face yaoi2024-05-16T08:11:41Zgelbooru