gelbooruhttps://xbooru.com/index.php?page=atom&tags=2020s 2023 2boys against tree anal animated skeleton big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue hoodie blue jacket blush bottom sans bottomless bottomless male brother brother/brother brother and brother brother penetrating brother brothers duo ectopenis ectoplasm fontcest gloves grabbing arm grabbing from behind hooded jacket hoodie incest jacket larger male larger penetrating male male/male male only male penetrating monster motion lines outdoors papyrus papyrus (undertale) papysans partially clothed partially clothed male penetration penis public public sex red gloves s2ames2 sans sans (undertale) seme papyrus sex sex from behind skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom sweat thrusting top papyrus tree uke sans undead undertale undertale (series) white glove white gloves yaoi2024-05-22T16:06:21Zgelbooru