Xbooru - 2010s 2017 2boys 2d 2d (artwork) alternate version available animated skeleton big dom big dom small sub bigger dom bigger dom smaller sub blue blush blush blushing male bottom sans bound bound wrists brother brother/brother brother and brother brothers christmas clothed clothing digital media (artwork) dominant dominant male duo ectopenis english text fontcest gloves happy new year imminent sex incest looking at penis male male/male male only maledom malesub monster new year orange blush orange penis papyrus papyrus (undertale) papysans penis penis out precum questionable consent red gloves red scarf sans sans (undertale) santa hat scarf seme papyrus sequence sequential skeleton small sub small sub big dom smaller sub bigger dom submissive submissive male taped mouth text theyaois tied up tied wrists top papyrus uke sans undead undertale undertale (series) video games yandere yandere papyrus yaoi