gelbooruhttps://xbooru.com/index.php?page=atom&tags=2boys 2d 2d (artwork) 4 fingers animated skeleton blue blush blue penis blush bone bottom sans clothed dark background digital media (artwork) duo ectopenis flowans flower flowey the flower flowsans genitals gradient background interspecies male male/male male only monster penis plant purple background sans sans (undertale) seme flowey simple background skeleton smile sweat tentacle tentacle on male tentaclejob tentacles on male testicle text tinybeasts tinynsfw top flowey uke sans undead undertale undertale (series) video game character video games vine tentacles vinejob vines yaoi2024-05-10T17:20:42Zgelbooru