Xbooru - 2010s 2016 2boys 2d 2d (artwork) against table animated skeleton bent over bent over table big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue blush blue body blush bottom sans brother brother/brother brother and brother brother penetrating brother brothers clothed sex comic comic panel crossdressing digital media (artwork) dirty talk drooling duo ectobody english text fontcest food gay horny horny male incest larger male larger penetrating larger penetrating smaller maid outfit maid uniform male male/male male only male penetrating monster onomatopoeia orange blush orange body pajamas papyrus papyrus (undertale) papysans penetration penetration from behind sans sans (undertale) seme papyrus sequence sequential sex sex from behind sex on table skeleton skirt lift skirt up small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom speech bubble table table sex tablesex talking talking to another talking to partner text text bubble thrusting top papyrus turned on uke sans undead undertale undertale (series) ut-with-all-the-sexy (artist) vase yaoi yawn