Xbooru - 1boy 1cuntboy 2020s 2023 2d 2d (artwork) animated skeleton aokisk artist name big penis bigger male bigger penetrating bigger penetrating smaller blue blush blue clitoris blue pussy blue tongue blush bottom sans bottomless bottomless cuntboy bottomless male brother brother/brother brother and brother brother penetrating brother brothers clitoris clothed clothing crying crying with eyes open cuntboy cuntboy penetrated digital media (artwork) drooling duo ectopenis ectopussy english text fontcest from behind position genitals gloves grey background grey socks hand under clothes holding hand incest kneel larger male larger penetrating larger penetrating smaller male male/cuntboy male only male penetrating male penetrating cuntboy monster orange blush orange eye orange penis papyrus papyrus (undertale) papysans partially clothed penetration penetration from behind penis pussy red gloves riding riding penis sans sans (undertale) seme papyrus sex sex from behind simple background sitting skeleton smaller cuntboy smaller penetrated socks talking to another talking to partner tears text tongue tongue out top papyrus topwear twitter username uke sans undead undertale undertale (series) vaginal vaginal penetration vaginal sex video game character video games yaoi