Xbooru - 2020 2020s 2d 2d (artwork) animal genitalia animal penis animated skeleton begging to stop belly bulge big dom big dom small sub big penis bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller bottom sans brother brother/brother brother and brother brother penetrating brother brothers covering mouth crying crying with eyes open digital media (artwork) diphallism duo ectobody ectopenis english text fontcest gaster blaster genitals hemipenes huge cock huge penis incest larger male larger penetrating larger penetrating smaller line art lineart male male out of frame male penetrating monster non-con non-consensual noncon nonconsensual nsfwgarbagedump papyrus papyrus (undertale) papysans penetration penis pleading rape sans sans (undertale) seme papyrus sequence sequential sex size difference skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom solo focus tears text top papyrus uke sans undead undertale undertale (series) unseen male unseen male face veiny penis video games white background yaoi