Xbooru - 2d 2d (artwork) animated skeleton anon anonymous anonymous male artist request big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue hoodie blue jacket bottom sans bottomless bukkake crying crying with eyes open cum cum in mouth cum on face cum on head digital media (artwork) faceless character gangbang gangrape grabbing penis grey background group sex hand on another's head hand on head handjob hooded jacket hoodie hoodie only jacket larger male larger penetrating larger penetrating smaller male male only male penetrating monster monster boy multiple boys multiple males off shoulder oral penetration penis penis grab sans sans (undertale) sex simple background skeleton small sub small sub big dom smaller male smaller penetrated smaller sub smaller sub bigger dom smaller submissive solid color background solo focus spitroast tears uke sans undead undertale undertale (series) unseen male face video game character video games yaoi